Wild Free and Happy Sample 22

[Note: This is the twenty-second sample from my rough draft of a far from finished new book, Wild, Free, & Happy.  I don’t plan on reviewing more books for a while.  My blog is home to reviews of 201 books, and you are very welcome to explore them.  The Search field on the right side will find words in the full contents of all rants and reviews, if you are interested in specific authors, titles, or subjects.] 

Mother Grassland

Hominins originated on the tropical savannahs of Mother Africa, about four million years ago.  Since then, we have evolved, gotten too clever, colonized six continents, driven many megafauna species extinct, maximized food production, and exploded in numbers.  The human saga has been a unique experiment in living that is entirely out of the pattern of all other animals.  In a fantastic joyride of blissful ignorance, we have unintentionally succeeded in rubbishing the planet.  The bedrock foundation of this grand adventure is our deep and enduring relationship with grassland ecosystems.

Grasslands are sprawling green arrays of solar energy collectors that transform sunbeams into carbohydrates.  These nutrients migrate from species to species, up and down the food chain, and enable the existence of the family of life, including large herbivores, the preferred food for prehistoric people.  For the effort invested, they provided the biggest jackpots of meat.  Our intense desire for these animals, and our ongoing dependence on them, guided our evolution from hominins to humans. 

It’s important to understand that herds of large herbivores do not usually reside in forests or jungles.  Large body size is an advantage on grasslands, but can be a disadvantage in dense woodlands.  In terms of vegetation, forests contain much more plant biomass than grasslands, but most of it is elevated out of the reach of hungry herbivores. 

For herd critters, grasslands are the best place to dine on high quality greenery, hang out with friends and relatives, and enjoy a wonderful life of fresh air, travel, and adventure.  Each year, grasslands produce much more new biomass per acre than forests, and it’s conveniently located close to the ground.  Consequently, grasslands are home to far more large animals.  I would expect that most mammalian megafauna species originated in grasslands.

Grasslands, grazers, and large carnivores coevolved for many millions of years.  Much more recently, hominins pushed into the game, and began competing with the carnivores.  By and by, the clever tropical primates, with their terrifying weaponry, expanded into every continent, migrating from grassland to grassland, hunting, feasting, singing, and dancing.

As expanding wild cultures perfected their hunting skills, large game became harder to find, and attention shifted toward smaller animals, birds, shellfish, and so on.  We kept bumping into limits, and some cultures began to lurch toward the domestication of animals and/or plants.

Over time, persistent control freaks eventually succeeded in domesticating some wild herbivore species.  Instead of spending their time chasing increasingly scarce wild critters all over the countryside, they could selectively breed passive dimwitted animals, confine them to limited pastures, and conveniently exploit them in every imaginable way.  Jared Diamond noted that the five most important domesticates were horses, cattle, sheep, goats, and pigs.  All five were domesticated on the grasslands of Eurasia by 4000 B.C.  No mammals were domesticated south of the equator in Africa, humankind’s ancestral homeland.

In some cultures, foragers gathered the energy-dense seeds of wild grasses.  Over time they encouraged these grasses to grow in more locations by sowing their seeds.  Foragers had a natural tendency to gather the seeds that were more convenient to reap, and leave behind seeds that readily fell to the ground.  For example, when wild wheat is ripe, the heads shatter, releasing all of their seeds.  This natural dispersal promotes the survival of the species. 

Year after year, foragers brought home seeds from plants that were (1) less prone to shattering, (2) ripened at the same time, and (3) produced larger seeds.  Over centuries, the seeds they planted became significantly different from wild seeds.  Today, more than half of the calories consumed by humankind come from three grasses: rice, wheat, and corn (maize).  Other popular grasses include oats, barley, millet, sorghum, sugar cane, and bamboo. 

I’ll have more to say about plant and animal domestication in later chapters.  Here, I just want to point out that some hunter-gatherer cultures transitioned into farmers and herders.  Their diet continued to major in grassland plant foods and large herbivores, but it was shifting toward domesticated varieties.  What remained constant was the continued dependence of many cultures on grassland ecosystems.

Graham Harvey, a grass worshipping wordsmith, concluded that humans are essentially creatures of the grass, like hyenas and horses.  Deep inside, we still are.  Long ago we lost our ability to quickly scamper up trees, and leap from branch to branch.  We evolved into bipedal critters fine-turned for walking, running, and surviving in grasslands.

Nomadic Freedom

In the good old days, bands of nomadic hunter-gathers spent their lives wandering across vast grasslands.  It was a way of life that majored in freedom.  Our ancestors were as free as every other wild critter.  No rent, money, landlords, soldiers, slaves, taxes, kings, police, or smart phones.  Indeed, we evolved as nomads, and remained nomads for almost the entire four million year hominin saga.  For hunters to stop roaming, and put down roots, would have been very risky.  Their best option was to follow the herds, which never stopped wandering in search of grass.

Bruce Chatwin was fascinated by the freedom of nomadic life, and the deep human need to always keep moving.  He was born in England in 1940, and spent his entire life in an intensely overpopulated world, boiling with nonstop conflict and bad craziness.  Industrial civilization tends not to inspire a profound sense of joy, wonderment, and celebration among the billions of anxious stressed-out taxpayers born in captivity.

He mentioned a Hungarian epidemiologist who had studied the history of infectious diseases.  The man concluded that humans were not meant to settle down.  Whenever you confine dense populations of humans and other animals in a fixed location, poop happens — lots of poop — excrement all over the place.  Drinking water develops a crappy flavor and aroma.  Before long, pathogens rush through the crowds, weeding out the weak and unlucky — a gold rush for grave diggers.  Nomads live in small bands, and rarely crap in the same place twice.  Their water tastes like water, and their lifestyle is not a magnet for infectious diseases.  Freedom is good for your health.  We’ll take a closer look at disease in later pages.

Today, during the brief era of fossil fuel mania, developed societies can temporarily discourage epidemics by implementing complex, expensive, energy-guzzling systems for waste treatment and water purification.  In wealthy societies, antibiotics are currently controlling the spread of many pathogens, but the benefit of these wonder drugs can only be temporary, because pathogens will never stop mutating into drug-resistant forms.  We are approaching the post-antibiotic era.  Whistling while he works, the Grim Reaper is sharpening his scythe.  Breaking all the laws of nature has harsh consequences, and Big Mama Nature has a deep regard for justice.

Finally, nomadic cultures enjoyed great freedom as long as they remained hunter-gatherers.  These cultures were essentially egalitarian.  There was no hierarchy of power, everyone was equal.  Unequal status was toxic to group cohesion.  Folks who became big headed were a serious problem that had to be promptly resolved.  It was vital that folks in small bands cooperated, shared, and respected one another.

When nomadic cultures shifted from hunting wild animals to herding enslaved critters, they entered a path that led to ugly destinations.  Nothing more reliably turns humans into tyrants, conquerors, egomaniacs, and spectacular idiots than cultures that define personal status in terms of accumulated wealth — personal property.  The lad with 100 cattle looked down on the fellow with 10.  This mindset sparked an explosion of craziness — furious empires of Mongols and Huns spilling rivers of blood.  Status mania continues to this day, but on a dramatically larger scale.  We are not living at the zenith of freedom, or anywhere near it.

Grassland Basics

In the dry land regions of Earth, there are four primary biomes: grassland, forest, desert, and tundra.  Precipitation is a key factor.  Forests and jungles need to receive at least 30 inches (76 cm) per year.  Deserts receive less than 10 inches (25 cm).  Grasslands fit in the middle, 10 to 30 inches.  Grasslands have two seasons, productive and dormant.  In warm climates, they are dormant during the dry season, and recover when the rains return.  In temperate climates, they are dormant during the frosty months, and green when the soil thaws.

Grasslands have evolved to survive in arid climates.  Grasses can live where most other plant species cannot.  There are three basic categories of grasslands: savannah, steppe, and prairie.  [MAP]  Savannahs are grasslands speckled with some trees and brush.  Steppes are called shortgrass prairies, because most plants are less than one foot (30 cm) tall.  Prairies are wetter, and produce tall grass, which can grow up to 13 feet (4 m) high — a horse can disappear in it.

Graham Harvey noted that grasses first evolved about 70 million years ago.  There are now an estimated 12,000 grass species, and they grow in many temperate and tropical regions.  Grasslands are communities of different plants — primarily grasses, mixed with a wide variety of sedges and leafy forbs (wild flowers and herbs). 

These mixed communities maximize the capture of solar energy, make better use of soil resources, and create rich humus.  Humus boosts fertility, and helps retain moisture.  Some plants convert atmospheric nitrogen into a form that is essential for all plants and animals.  Others are good at retrieving essential mineral nutrients.

Following an intense disturbance, grasslands can recover in 5 to 10 years — far faster than a wrecked forest.  Evolution has done a remarkable job of fine-tuning grasslands for rugged durability.  They can go dormant during dry times, and revive when rains return.  They can survive extended droughts and six month winters.  They can recover more easily after wildfires because only a third of grassland biomass is above ground, and vulnerable to flames. 

Beneath the surface, the invisible portion of grasslands is astonishing.  Many plants send roots deep into the ground, to acquire moisture and nutrients.  Some grow as deep as 32 feet (10 m).  In some regions, densely interwoven roots created a thick sod that pioneer farmers cut into bricks that were used to build homes and schools.  Because of unreliable precipitation, trees and shrubs often die before they can grow roots deep enough to tap dependable water.

The seeds of many grassland species can remain dormant for an extended period, until appropriate conditions return, and inspire them to germinate.  Some seeds can survive a ride through an herbivore’s gut and remain fertile, enabling the colonization of new locations.

In 1872, Kansas senator John James Ingalls celebrated the power of grass.  He wrote: “Grass is the forgiveness of nature — her constant benediction.  …Streets abandoned by traffic become grass-grown like rural lanes, and are obliterated.  Forests decay, harvests perish, flowers vanish, but grass is immortal.  …The primary form of food is grass.  Grass feeds the ox: the ox nourishes man: man dies and goes to grass again; and so the tide of life with everlasting repetition, in continuous circles, moves endlessly on and upward, and in more senses than one, all flesh is grass.”

Wild Free and Happy Sample 05

[Note: This is the fifth sample from my rough draft of a far from finished new book, Wild Free & Happy.  I don’t plan on reviewing more books for a while.  My blog is home to reviews of 199 books, and you are very welcome to explore them.  The Search field on the right side will find words in the full contents of all rants and reviews, if you are interested in specific authors, titles, or subjects.] 

Savannah Pioneers

When our ancestors moved from the forest to the savannah, they began a journey into an entirely different way of life.  Critters that evolution had fine-tuned for arboreal living were poorly prepared for surviving on open grassland.  They were not big, strong, or speedy.  They didn’t have horns, fangs, or claws.  They couldn’t digest grass.  They had to adapt to different sources of food, and different threats to their survival.  It took centuries of trial and error to develop new ways of living, and hundreds of thousands of years to evolve new and improved bodies fine-tuned for their unique experiment.

In the early days, our ancestors were not apex (top level) predators, they may have been more like walking meatballs, easy prey for big cats, packs of hyenas, huge crocodiles, and other hungry carnivores.  Chris Stringer mentioned genetic research indicating that today’s Earth-pounding mob of Homo sapiens trace back to an ancestral population of about 10,000 breeding individuals.  Earlier, a million years ago, in the Homo erectus era, there were just 20,000 breeding individuals.  For a very long time, our ancestors existed not too far from the brink of extinction.  It wasn’t easy being a highly vulnerable ground-dwelling primate.

Scavenging and Primitive Hunting

Our ancestors on the African savannah were hunter-gatherers, and their diet majored in plant foods, with a regular supplement of highly nutritious animal foods.  In the early chapters of the great hominin adventure, they were not expert hunters with effective weapons.  Meat was acquired via scavenging and primitive hunting.  With bare hands, they could grab critters like grubs, grasshoppers, termites, maggots, snails, shellfish, lizards, and frogs.  They could kill animals sleeping under bushes, dig up others from their burrows, chase down slow moving aardvarks and porcupines, and snatch immature youngsters.  Large birds could be knocked down by throwing clubs.

It’s easy to forget that rocks can be lethal weapons.  Wendell Bennett wrote that the Tarahumara people of Mexico threw stones with remarkable accuracy, killing rabbits, birds, and animals up to the size of coyotes.  Some of their groups did more hunting with stones than with bows and arrows.

Alfred Crosby wrote that any human more than eight years old, male or female, can throw projectiles farther and more accurately than any other species.  This ability gave us the power to effect change from a distance.  Well-thrown projectiles could drive away hungry predators or kill a plump bunny for dinner.  Researcher Frans de Waal noted that stone throwing chimps also have “impressive long-range aim.”  (Ouch!)

Crosby noted that a few hundred years ago, Europeans visiting Samoa got a painful lesson in the superb stone-throwing skills of the natives.  Of the 61 men sent ashore, 12 were killed by well-thrown rocks.  Humans also invented the rock-throwing sling, which was even more deadly, especially when loaded with lumps of lead.  Many of the conquistadors visiting Mexico had life-changing experiences while getting stoned by the angry sling-twirling Indians.

Scavenging is getting meat from carcasses that you didn’t kill — leftovers from large carnivores, or animals that died from other causes.  In later times, as the ancestors became more skilled at hunting, scavenging was not abandoned.  Meat is treasure, no matter how it is acquired.  Scavenging was often less work and less dangerous than pursuing and killing an animal.

During the day, our ancestors paid careful attention to the skies.  When vultures flew in a specific direction, they might be en route to a fresh carcass.  Circling vultures were strong evidence of a banquet directly below.  Once you got a hot tip, it was best to move quickly, in an effort to beat other scavengers to the banquet.

Hyenas work in gangs, and can quickly strip the scraps off carcasses, leaving few leftovers, if any.  Their arrival time was sometimes delayed by their need to stop, pant, and cool off from time to time.  Our ancestors were far better at shedding heat, an important advantage.  If hyenas or jackals arrived first, it was sometimes possible to mob them and drive them off.  On lucky days, it was possible to steal lunch from a lone cheetah.

Lions were another story.  To drive them away from a kill, surprise was important.  You and your buddies should suddenly charge, waving your arms, shouting, throwing rocks, swinging clubs, or maybe start a grass fire upwind.  Smart scavengers never tried this when lions were just beginning their lunch feast, and were still very hungry.  It was best to wait until they were full and ready for a nap.  Lions rarely consume brains or marrow, and sometimes leave some meat scraps for the intrepid.

It was also important for scavengers to pay attention to trees.  When leopards didn’t completely consume a kill at one sitting, they stored the leftovers up in the branches.  Leopards are night creatures.  If you found their unguarded stash in the daytime, there was less chance of getting shredded and devoured by an angry cat.

Right now, your eyes are following a track of squiggly scratches, and your mind is comprehending meaning from them.  My thoughts and actions created those tracks, and they contain specific meaning for those who have learned how to interpret them.  The farther you are able to follow my tracks, the more you will learn about me.

Similarly, animals leave behind tracks and other signs as they move across the land.  Folks who are skilled at reading this information can accumulate pieces of a story.  They can perceive a fantastic amount of information by studying spoor — footprints, urine, feces, saliva, blood, fur bits, feeding signs, smells, sounds, and so on.  Spoor provides clues about the animal’s species, gender, size, behavior, direction of travel, time of passage, and so on. 

Fresh tracks left by a game animal indicated that it had passed through the area, and the direction it was moving — essential information for hungry hunters.  Also, spoor left by large carnivores indicated predators on the move.  Following their tracks might eventually lead to a recent kill, and a carcass to scavenge.

The San

Louis Liebenberg is a South African lad who has spent years on the Kalahari Desert with the San people (other names include Khoisan, Bushmen, !Kung).  He was not a nerdy anthropologist, he directly participated in hunts, and eventually became a skilled tracker.  He wrote two outstanding books about tracking, scavenging, and persistence hunting.

One time, Liebenberg asked some San trackers if they could actually recognize the spoor of an individual antelope.  They burst out laughing at his incredibly stupid question.  They couldn’t imagine anyone not being able to do this.  When they see a human footprint, they immediately know which individual in their band made it.  Children can identify the tracks of their parents.  Footprints are as unique and recognizable as faces.  To see the footprints of an unknown stranger was highly unusual, and would inspire caution. 

More anthropology books have been written about the San than any other wild people.  Geneticists have found that they have the oldest DNA of any living culture — it is the genetic foundation of nearly all modern humans.  Their genes are the closest to the ancient female from whom all living humans descend, known as Mitochondrial Eve.  Thus, your family tree likely leads back to ancestors similar to the San.  (Pygmies are the second oldest living culture.)

The San have been hunter-gatherers since the dawn of humankind, and they enjoyed a way of life that managed to survive into the 1970s.  Eight hundred years ago, the San homeland included all of southern Africa.  Since then, Bantu and European herders and farmers have displaced them from lands suitable for grazing and agriculture, forcing the San into the Kalahari where, on average, two of every five years are drought years, and severe droughts occur one in every four years.

There are large regions of the Kalahari that are quite flat, an endless landscape having no notable landmarks for a white boy like me, who would quickly become hopelessly lost, and turn into vulture chow.  The San, on the other hand, always know exactly where they are, across large regions, because they orient themselves by the layout of plant communities, noting their size, shape, position, and unique features.  They know the face of their land as well as they know the faces of their family.

Richard Lee wrote about the San.  Their primary food was mongongo nuts, which dropped once a year, but could be gathered all year long.  Meat was their second most desired food.  The Kalahari provided them with about 100 edible plant species, which they were careful not to overuse.  The San expected periodic times of scarcity, so they reserved some plant species for drought food.  Portions of their territory were set aside for lean times.

John Reader wrote about an extreme drought in Botswana that lasted three years, resulting in the deaths of 250,000 cattle and 180,000 people.  The San didn’t starve.  Each week they spent 12 to 19 hours foraging for their sustenance.  They lived in one of the harshest environments on Earth.  At the same time, hungry farming people had shifted to foraging during the drought, so the San lands were supporting a larger population than that of normal times.

Elizabeth Marshall Thomas has spent a lot of time with the San.  She wrote her first book on them in 1958, and her third in 2006.  Like any intelligent culture, their safety net included mindful family planning, to avoid the problems caused by overpopulation, and its trusty companions: environmental degradation, hunger, and conflict.

Because of low body fat and vigorous physical activities, San women began menstruating later.  Some did not have regular monthly periods.  Children were usually nursed for about four years, which further reduced their mom’s fertility.  Most of the women had one to four offspring.  Nomads moved frequently, and belongings and infants often had to be hauled long distances.  A woman could only carry one infant, so just one twin was kept.

When a child could not be kept, the woman gave birth alone, away from the camp, and buried the newborn before it drew breath.  In their culture, a newborn did not immediately become alive, so disposing it was OK.  Crippled or badly deformed infants were not kept, because they would be a drain on the wellbeing of the band.  To avoid unwanted pregnancies in harsh times, it was common for folks to abstain from intercourse. 

Jon Young is the star of several YouTube videos on nature connection.  He was an early student of Tom Brown, the famous author of many books on tracking and nature awareness.  Young visited a number of wild cultures to find those that remain most closely connected to nature.  He discovered that the San people were incredibly well connected.  They refuse to enter houses, because people who live indoors go insane.

Young says that with the San, you always feel safe.  They are super intelligent, super happy, super vital, and great problem solvers.  You never feel competition.  The people are in love with every aspect of the ecosystem around them, celebrating with childlike wonder through all stages of their life.  Every person in that community is committed to the flowering of every other person.  They are incredibly aware of their surroundings at all times, because a brief lapse of attention can kill you in lion country.

Wild Free and Happy Sample 02

[Note: This is the second sample from my rough draft of a far from finished new book, Wild Free & Happy.  I don’t plan on reviewing more books for a while.  My blog is home to reviews of 196 books, and you are very welcome to explore them.  The Search field on the right side will find words in the full contents of all rants and reviews, if you are interested in specific authors, titles, or subjects.] 

Our Tree Critter Ancestors

The dawn of life on Earth began maybe four billion years ago, with the emergence of single-celled beings, the common ancestors of all forms of life, including us.  Let’s fast forward to around 65 million years ago, when our first primate ancestors came into existence, not long after dinosaurs moved off the stage.  These critters were squirrel-sized, and lived high above the ground in the humid tropical rainforests of Mother Africa.  They were probably insectivores, furry little hunters that dined on the delicious flesh of bugs and grubs.

Arboreal (tree-dwelling) primates had little need for a powerful sense of smell like most terrestrial (ground-dwelling) animals have.  What they needed was excellent stereoscopic vision, via forward oriented eyes that provided accurate depth perception, so they could scamper and leap through the branches without mishap.  Being able to perceive colors made it easier to find ripe fruit, which was a primary food source.  Even today, bright red objects attract our attention.

Their hands and feet evolved into forms fine-tuned for grasping bark, vines, and branches, with toes and fingers tipped with nails, not claws.  Fingers were long and curved, wrists freely rotated, and shoulder joints were flexible.  An acute sense of touch and a sharp mind helped them excel at airborne acrobatics.  Humans retain a number of these arboreal traits.

Our ancestors were tree-dwellers for most of the 65 million year saga of primates.  A look in the mirror shows clear evidence of this heritage.  Most primate species today remain partly arboreal.  Humans are the only living primates that are fully terrestrial.  Large male gorillas do not sleep in the trees, but the other gorillas do.

In the rainforest, food was available year round, so our ancestors enjoyed an easy life.  Living amidst a cornucopia of organic fruit, nuts, insects, and assorted tree critters, they could live happily without tools, fire, cooking, cell phones, or psych meds.  The climate was comfortable, so there was no need for clothing.  A simple tree nest was all they needed.  It was a wonderful way of life, while it lasted.  They only used renewable resources, and they left no permanent scars on the forest.  Like all other animals at the time, they had a way of life that was genuinely sustainable.

Shift to the Savannah

Climate change is a trickster that takes great delight in periodically pulling the rug out from under stable ecosystems, and watching them scramble to survive.  It’s an exciting roller coaster of hot and cold, wet and dry, calm and stormy.  Species that can’t adapt to changing conditions go extinct, creating opportunities for other species to fill their ecological niche.  The show of life must go on.

Long, long ago, in Mother Africa, the climate was warm and moist, home to the magnificent rainforests in which primates evolved.  Later, around five million years ago, as glaciers grew in the Northern Hemisphere, the climate in African rainforests began to shift to cooler and dryer.  By two million years ago, lush rainforests were far smaller, largely replaced by expanding savannahs (grasslands with scattered trees).  If it wasn’t for climate change, you might be sitting naked on a branch today, wild, free, and happy in a lush rainforest paradise, nibbling on fruit with your friends and family, in a clean, healthy, sustainable world.

As the rainforests shrank, our tree-dwelling ancestors were something like tadpoles in a puddle that was drying up.  Many species of arboreal critters went extinct, but not all of them.  The ancestors of chimps, bonobos, gibbons, and orangutans were able to remain in the forest and avoid extinction, while baboons, gorillas, and our ancestors took a deep breath, moved to the ground, and tried to adapt to a new way of life.

On the savannah, our early ancestors were weird looking, funny smelling undocumented immigrants, attempting to survive in a habitat for which evolution had done little to assist them.  Their limited speed, size, and strength were serious drawbacks.  They were newcomers in a grassland neighborhood where most of the long-term residents had been coevolving for millions of years.  The new neighborhood included numerous large carnivores that were strong, fast, and equipped with sharp claws and fangs.  They specialized in weeding out the injured, sick, elderly, immature, and inattentive.  Many of our ancestors became organic cat food.

To survive, our ancestors used several defensive strategies.  They lived in groups, where many eyes were constantly paying attention to the surroundings.  When someone noticed a threat, loud calls were made to alert the gang, and the predator lost the advantage of surprise.  Sometimes they mobbed hungry predators, aggressively assaulting them.  Other times they quickly scattered in every direction.  The ancestors were careful to be as invisible as possible.  They chose sleeping places that offered the most security.  As a result of their cleverness, luck, and risky choices, an enormous number of ground-dwelling primates survive today.

Rainforests have high biodiversity, they provide a pleasant home for huge numbers of species.  Savannahs support far less biodiversity but, unlike dense forests, they provide excellent habitat for many large animal species.  A square mile of rainforest contains tons of biomass in its trees, far more than a square mile of grassland, but grassland can produce more new biomass every year, primarily during the wet season.  This nutritious vegetation, which includes high-energy seeds, grows close to the ground, a convenient location for grazing animals. 

The biological productivity of grasslands (savannahs, prairies, and steppes) encouraged the emergence of large herds of herbivores and their predators.  When our ancestors moved to the ground, evolution had not equipped them for hunting large game, or escaping from speedy carnivores.  They had two options, adapt or go extinct.

Cradle of Humankind



East Africa is called the Cradle of Humankind because it’s where our ancestors originated.  As noted in an earlier post, two to four million years ago, the region became cooler and dryer.  Forests shrank.  The ancestors of baboons and humans moved out of the forest and adapted to savannah ecosystems (grasslands with scattered trees).

In this new habitat, male baboons evolved large canine teeth, to better deflect predator attacks.  All baboons retained the physique for scampering up trees.  Baboons still live sustainably, as they have for millions of years, because they continue to live in the manner for which evolution fine-tuned them.  They adapted to their ecosystem without altering it.  They did not make weapons and hunt animals larger than they were but, on happy days, they could mob a leopard and disassemble it.

Our ancestors evolved into critters that stood on two legs (bipedal).  They became furless, sweaty, long distance runners who, in a hot climate, could chase animals until they collapsed from exhaustion.  Heavy sweating kept them cool whilst jogging for hours.  With these traits, evolution created a new mode of offense, but it was weirdly stingy about providing defensive assets like speed, strength, teeth, or claws.  These ancestors were less agile at zooming up trees.  Over the eons, many species of bipedal apes have evolved, but only one still survives.

In the early days, the ancestors acquired new abilities very slowly, via evolution.  At the same time, other species were also busy evolving new abilities for countering our advances, and maintaining the balance.  For large animals like apes, genetic evolution can take thousands of years to stabilize a new and improved trait.  Evolution does not always mean progress.  We’re discovering that big brains can be more trouble than they’re worth.

With our transition to tool making, we began gaining new abilities by inventing them, a much faster process.  Spears enabled our ancestors to impede the man-eating predators that had kept their populations neat and tidy.  This rubbished the laws of nature.  Imagine rabbits inventing tools that allowed them to overpower foxes.  With spears, we could also kill large game, acquire abundant meat, and feed more bambinos.

By becoming tool freaks, our ancestors stumbled into the dangerous juju of cultural evolution, a painful experiment that has achieved enormous momentum and speed.  There are now seven-point-something billion of us.  We are the best-educated generation ever, the most destructive, we know it, and don’t seem to care much.  There is an important lesson here, summed up by Orgel’s Second Rule: “Evolution is cleverer than you are.”

Here’s a happy idea.  Genetic evolution is the result of a process that constantly generates billions of random mutations in every species of flora and fauna.  Most mutations are maladaptive and promptly blink out.  When mutations survive and continue, we call this natural selection.  William E. Rees reminds us that cultural evolution is also subject to something like natural selection.  Maladaptive cultural mutations, like soil mining or forest mining, are unsustainable.  Natural selection has no mercy for cultures that refuse to learn the dope slap lessons of repeated mistakes.  In the long run, the family of life will always trump self-destructive cultures, in a messy and merciless manner.

Rainforests are a paradise for biodiversity, providing a pleasant home for huge numbers of species.  Savannahs support far less biodiversity, but provide excellent habitat for many large animal species.  A square mile of rainforest contains tons of biomass in its trees, far more biomass than a square mile of grassland, but grassland can produce more new biomass every year, primarily during the wet season.  This nutritious vegetation grows close to the ground, a convenient location for grazing animals.

The biological productivity of grasslands (savannahs, prairies, and steppes) enabled the emergence of large herbivores and their predators in Africa, Eurasia, Australia, and the Americas.  For grassland herbivores, size and speed are evolutionary assets, because they discourage predators.  Lions scatter when menaced by uppity elephants.  Elephants live longer than bunnies.  Size matters.  Bigger is better.

Some species use simple tools like sticks, stones, or blades of grass, but our ancestors took the fabrication and use of tools to new levels.  They learned how make blades, projectile tips, scrapers, and axes by chipping flakes off stones.  Confronted with an organized gang of hungry apes with spears, giant size lost its advantage, and became a serious handicap.  Cultural evolution trumped genetic evolution.

In addition to getting extremely clever with tools, our ancestors also learned how to make and use fire, an ability that helped keep man-eating predators at bay.  Fire allowed us to inhabit the entire planet, and disrupt the balance of ecosystems wherever we went.  Cooked foods were easier to digest, so we could extract more nutrients.  Cooking also enabled us to digest formerly inedible materials.  Thus, our food resources were greatly expanded.

Stephen Pyne is the world’s expert on fire history.  He described excavations at Swartkrans Cave in South Africa.  At the oldest layers, the pre-fire level, no charcoal is found.  There are complete skeletons of big cats, and the scattered gnawed bones of the critters they ate, including hominids — cats were the top predator.  Charcoal is found in newer layers, the fire age.  Here are found complete hominid skeletons, and the scattered bones of the critters they gnawed, including big cats — hominids had become the top predator in the cave.

Pyne concluded, “Without fire humanity sinks to a status of near helplessness, a plump chimp with a scraping stone and digging stick, hiding from the night’s terrors, crowding into minor biotic niches.”  Combined with fire, our ability to make spears, javelins, hammers, choppers, baskets, nets, and so on propelled our blastoff into outer space, far beyond Africa.  Maybe fire and tool making are the reason that evolution didn’t bother enhancing our defenses.

Baz Edmeades is a specialist in megafauna extinction, and he notes that our ancestors were not masters of sustainable living.  Africa was loaded with megafauna species at the dawn of the Pleistocene 1.8 million years ago, but many were gone by 1.4 million years ago.  At the Olduvai Gorge site in Tanzania, in 1.8 million year old deposits, they have found the butchered bones of rhinos, hippos, elephants, antelopes, and buffalo.  Elsewhere, evidence suggests that our ancestors were tending fires 1.6 million years ago.

In the good old days, Africa had nine species of big cats (three today), nine species of elephants (one today), and four hippos (one today).  There were giant antelopes, giant hyenas, giant pigs, giant monkeys, and giant baboons — all gone.  Primary suspects include an Australopithecus species and Homo erectus.  Homo sapiens emerged much later, maybe 100,000 years ago.

Edmeades emphasizes that during this wave of extinctions, there were not corresponding extinction blips in Siberia, Europe, Australia, or the Americas.  In these other regions, most megafauna species thrived for another million years — including many species that blinked out in Africa and South Asia.  If climate change was the primary cause of megafauna extinction, the northern hemisphere should have been hammered harder, because it was the region most affected by glaciation.

Lars Werdelin is a specialist in the evolution of mammalian carnivores.  He ponders the current efforts to designate a new era of geologic time, the Anthropocene, the period when humans began causing irreversible impacts.  When did it start?  Some think 1945, or the Industrial Revolution.  Others say the dawn of soil mining and animal enslavement.  Paleontologists like Werdelin observe reality from a perspective that embraces a much broader sweep of time.

He notes that between 3.5 million years ago, and 2 million years ago, the number of large carnivore species in Africa was reduced by half.  Today, only two percent of the African large carnivore species still survive.  This transition does not correspond to what is known about climate patterns — similar extinctions did not occur in other regions at this time.  A more likely suspect is the appearance of an early species in the Homo genus.  With regard to the kickoff date for the Anthropocene, Werdelin notes, “Humans have had the ability to affect ecosystems on a major scale for the past two million years.”

Björn Kurtén was an expert on the fauna of Pleistocene Europe.  The megafauna included varieties of mammoths, rhinos, horses, aurochs, reindeer, giant hippos, giant deer, giant musk ox, giant hyenas, giant bears, giant cheetahs, giant cave lions, saber-tooth cats, leopards, antelopes, goats, and many others.  Many of these species survived in Europe until the Late Pleistocene (which ended 10,000 years ago), but are now gone.

Kurtén concluded, “The mass death can hardly be ascribed to climatic causes alone, for there was no similar mass extinction in earlier interglacials.  It seems fairly certain that modern man has played a dominant role in the wiping out of many species, although perhaps by indirect influence as much as by actual hunting.”

Edmeades notes that, in Europe, warmth-loving megafauna species, like the straight-tusked elephant, hippos, and woodland rhinos, went extinct by 25,000 years ago, around the time of the last glaciation.  There were many glaciations during the Pleistocene, and some were more severe than the last one.  The last glaciation corresponds to the time when Homo sapiens colonized Eurasia.  Cold-tolerant mammoths and wooly rhinos survived in Western Europe until 12,000 years ago.

In North America, prior to human colonization, Edmeades says the ecosystem remained comparable to Africa 1.8 million years ago.  There were condor-like birds with 16-foot wingspans (4.8 m), mammoths, and mastodons.  In addition to cheetahs, “No less than five other kinds of big cat were living on an extravagant assortment of camel, llama, deer, horse, musk ox, bison, goat and sheep species.  With its giant bears, giant beavers, giant armadillo-like species, giant tortoises, and its giant ground-sloth species, North America was, without exaggeration, a super-Serengeti containing many more big-animal species than present-day Africa.”

“The population of every organism on Earth,” he writes, “is limited by collisions with the wall of limited resources.”  Baboon numbers are limited by the availability of nutrients they can acquire with their bare hands.  Specialized meat eaters like lions are limited by the availability of prey animals.  Both lions and baboons live as evolution fine-tuned them.  Food may be abundant one season, and scarce the next.  When abundant, populations increase.  Starvation is perfectly normal and natural.

Our ancestors had the added benefit of being omnivores.  When hunting was bad, they could dine on roots, nuts, and fruits.  This dietary safety net provided a huge strategic advantage over specialized meat eaters.  Of course, even omnivores can experience mass starvation.  All life requires nutrients, and all nutrients are finite.

The ancestors also benefitted by having cutting edge technology like fire, javelins, lances, harpoons, nets, snares, boats, and warm clothing.  Modern humans have blindsided the planet by converting many wild ecosystems into freaky food production plantations, dramatically increasing their nutrient resources — as long as the soil remains fertile, and pests, viruses, droughts, deluges, and frosts don’t nuke the plan.

Everyone agrees that, once upon a time, many species of megafauna inhabited every continent, and that most are now extinct.  Everyone agrees that the extinctions did not occur at the same time, around the world.  There were not major spasms of extinctions in places where our ancestors had not yet arrived.  The extinct species had previously survived multiple eras of global and local climate swings, which were sometimes sudden and severe.  Climate shifts do alter the flora and fauna of affected ecosystems, and this contributed to regional extinctions, like the hippos of London.

When it comes to success at long-term sustainability, the chimps, bonobos, baboons, and every other non-human species, get high scores.  When the food supply in their ecosystem declines, they starve and die.  Our lineage took a different path.  Instead of starving, they increased their food supply via innovation.  Wild and free chimps, without technology, would struggle to survive beyond their current habitat.  They live where evolution fine-tuned them to live.

The creature you see in the mirror has the body of a meat-eating hunter.  It is bipedal, designed to be a long-distance runner in a hot climate.  Its hands, arms, and shoulders are fine-tuned for hurling projectiles (killing from a distance), and making and using tools.  Our ancestors were hunters more than a million years before Homo sapiens appeared.

Daniel Quinn wrote Ishmael, a best-selling novel that defined two classes of human societies, Takers (naughty) and Leavers (nice).  The fall of humankind was the transition to agriculture and civilization.  The book torpedoed sacred cultural myths and blew my mind.  Hunter-gatherers certainly have far less impact than civilized folks, but the history of megafauna extinctions is important. 

So is the fact that plant and animal domestication emerged independently in several regions.  Some groups of hunter-gatherers chose to increase their food supply rather than rely completely on the fickle luck of the hunt — or become masterful at family planning.  They cleverly began displacing the wild ecosystem to produce plant and animal foods — a transition that had Earth-shaking unintended consequences.

Worse, by producing far more food, their population bloated.  There is strength in numbers.  For thousands of years, mobs of hungry dirty farmers and herders have been steamrolling wild societies, helpless deer in the headlights of progress.  This is a real pisser!  High impact societies routinely trump low impact ones.  Consumer culture has become a monster factory where students are entranced by dark juju sermons on Sustainable Development™.  This feels like the Mother of All Predicaments.

The good news is that Big Mama Nature will not allow this tragic game to continue forever.  Highly educated consumers are consuming nonrenewable resources at a growing rate, blissfully ignorant of the existence of limits — a wall that they will slam into.  At the same time, centuries of progress are destabilizing the climate that has enabled the existence of civilization.  Wildlife populations are severely depleted and plummeting.  We are getting very close to the peak of our batshit crazy joyride of turbocharged foolishness.  An era of healing is coming.

Meanwhile, on the rainforest sidelines, are the chimps and bonobos, our closest living relatives, who have lived in the same place for millions of years without leaving scars on the habitat.  Imagine that!  Humans are animals, an extremely embarrassing fact that most of us adamantly deny.  I have no brilliant solutions to offer today.  My humble suggestion is to think like an animal.  Thinking like a consumer is pushing us toward the coffin of humankind.  All the best!

Edmeades, Baz, Megafauna — First Victims of the Human-caused Extinction, 2013.  This fascinating manuscript has been withdrawn from its home location (megafauna.com) for updates.  An earlier version is available HERE.

Kurtén, Björn, Pleistocene Mammals of Europe, Aldine Publishing Company, Chicago, 1968.

Pyne, Stephen J., Fire: A Brief History, University of Washington Press, Seattle, 2001.

Rees, William E., Is Humanity Fatally Successful?, Vancouver Institute, British Columbia, 2003 (Download).

Werdelin, Lars, Hominids, Carnivores, and the Origin of the Anthropocene, Swedish Museum of Natural History, 2015 (50 min video).

Bonobo: The Forgotten Ape

In the family of life, humankind’s two closest living relatives are bonobos and chimpanzees, two apes with strikingly different approaches to living.  Ninety-eight percent of our DNA is the same as theirs.  These three intelligent cousins share a common ancestor that lived five to seven million years ago.  In his book, Bonobo: The Forgotten Ape, primatologist Frans de Waal does a superb job of comparing the three cousins, and the photos of Frans Lanting are fantastic.

In Africa, chimps far outnumber bonobos, and inhabit a larger territory.  The two never meet in the wild, because apes cannot swim, and the Zaire River keeps them apart.  Both reside in dense tropical rainforests, and both sleep in the trees.  They are similar in appearance, and it wasn’t until 1929 that scientists realized that bonobos and chimps were different species.

Bonobos are lucky to live in a dense and rugged rainforest that is difficult for humans to get to, explore, and destroy.  Researchers can spend many days thrashing around in the foliage, completely unaware that a group of bonobos is silently looking down at them from the thick canopy above.  Bonobos were not studied in the wild until the mid-1970s, and research was interrupted from 1994 to 2003, by a civil war that claimed three million lives.  Chimps, on the other hand, had been known and studied for a long time.

During the twentieth century, industrial warfare brutally exterminated millions of humans.  For some reason, it became trendy to perceive humans as inherently violent.  Chimps were seen in a similar light, because of their resemblance to industrial humans.  Once, when two chimp groups came into contact, researchers observed the brutal massacre of the weaker group.

De Waal offered this insight on male chimps:  “Their cooperative, action-packed existence resembles that of the human males who, in modern society, team up with other males in corporations within which they compete while collectively fighting other corporations.”

Chimps and civilized humans typically live in groups dominated by alpha males who actively subdue their rivals.  Females are second-class.  When an alpha male chimp reaches retirement age, and is clobbered by a vigorous young upstart, the new alpha often kills the old fellow’s young offspring, so their mothers can promptly begin producing offspring with his genes.  Because of this, females with young tend to go off and forage alone, avoiding contact with the bloody stud and his buddies.

Bonobos look a lot like chimps, but live very differently.  Bonobo groups are matriarchal, and males are second-class.  Females determine how food is shared, and they eat while the males wait.  Chimps have sex only when a female is fertile.  Bonobos have sex almost anytime, several times a day, with anyone interested, young or old, in every imaginable way.

The genitals of female bonobos become enormously swollen when they are receptive to sexual delights.  They are receptive almost half of the time, whilst being fertile for just a few days.  Non-reproductive sex is an excellent way to defuse conflicts, keep everyone relaxed, and have a pleasant day.  Because everyone has sex with everyone, paternity is impossible to determine.  Therefore, male bonobos do not kill infants, because any infant might be their offspring.

Hominids have taken a third path, the nuclear family.  Long ago, with the arrival of the chilly glacial era, the rainforests we evolved in came close to disappearing.  Our ancestors shifted outside the forest.  The nuclear family was an adaptation for surviving on the open savannah.  Hominid offspring benefitted when their mothers and fathers lived together and cooperated.  Tightly knit groups of aggressive hominids could successfully kill game and fend off predators.  The strongest, fiercest males were more likely to survive and reproduce, so natural selection favored these traits.

Promiscuity was discouraged, because males did not want to spend their lives raising a rival’s offspring.  Thus, the nuclear family reduced the reproductive freedom of females, via moral constraints.  Hominid societies have probably been male-dominated from the start.  Male control further increased with the shift to sedentary living, and the accumulation of property.  Males wanted their life savings to be inherited by their own offspring.  This led to an obsession with virginity and chastity, and the prickly patriarchal mindset.

Civilized societies have developed patriarchal cultures.  “With a few notable exceptions, such as spotted hyenas and the lemurs of Madagascar, male dominance is the standard mammalian pattern.”  Chimps follow this pattern but, to the great delight of feminists, the discovery of female-dominant bonobo society has presented a less macho alternative.  So, who are humans?  De Waal says that humans are in the middle, between the two poles — both aggressive and empathetic.

Why are chimps and bonobos so different?  Both have low birth rates, and nurse their young for four or five years.  Bonobos live in a habitat with abundant food, and no serious competitors in their ecological niche, an ideal situation.  Chimps live in leaner lands, and compete for food with gorillas and baboons.  They feel the squeeze of crowding, and they reduce this pressure by infanticide, and by killing competitors.  Infanticide is common in many species, including lions, prairie dogs, mice, chimps, and gorillas.

We live in an era of extinctions, and the numbers of chimps and bonobos are in sharp decline, as their human cousins relentlessly expand.  Diamond miners, loggers, bush meat hunters, and war refugees continue pushing into their habitat.

De Waal appeared in a fascinating documentary, The Last Great Ape.  It includes many scenes of bonobos living in the wild.  We see them enjoying a pleasant life — eating fruit, having sex, climbing trees, playing, having sex, grooming each other, nursing.  In one scene, viewers look down from a plane zooming over the jungle, and the narrator says, “This part of the forest is like a time capsule; bonobos may have existed here in much the same way for two million years.”  Wow!

Viewers see animals that look like our ancestors, live like our ancestors, and still inhabit the region where our species originated.  The bonobos have obviously remained far more stable over two million years than humans have, because they enjoy good luck and just enough intelligence to live well in their niche.  When I contemplate the era of my 62-year life, and the skyrocketing destruction caused by humankind, it breaks my heart — and mindlessly killing the planet doesn’t even make us happy.  Big brains do not guarantee long-term stability and ecological sustainability.

Patriarchal chimps have also succeeded in living for two million years, in the same region, in a stable manner.  While they rudely offend our humanist and feminist sensibilities, they have evolved a way of living that is thousand times less destructive than that of the humanists and feminists in our insane society.

This raises an embarrassing question.  Exactly how did we benefit from complex language, literacy, technology, domestication, agriculture, civilization, and industrialization?

Waal, Frans de, Bonobo: The Forgotten Ape, University of California Press, Berkeley, 1997.

 

The Last Great Ape, WGBH, 2007 (the BBC version is titled Bonobo: Missing in Action, 2006).  The transcript is here.  Copyright holders periodically block YouTube access to this program, so it keeps changing names.  Search for “bonobo” videos that are 51 minutes long.

The Baka Pygmies are our relatives who have lived in the African rainforest close to forever.  In this video (2 min), they make an incredibly joyful noise.  The aura they radiate is that of wild people with deep roots in their ancestral home.  Sadly, their teeth indicate that their diet has been civilized.

This video (5 min) includes beautiful portraits of Baka Pygmies, along with their music.  The faces of the children radiate a glowing sense of joy and contentment.