I recently read a book entitled “Man the Hunted: Primates,
Predators, and Human Evolution” by Donna Hart and Robert W. Sussman. It investigates the distant history of our
ancient forbearers, and might help us understand our current state of
being. The book’s authors challenge the
belief that human beings are descended from hunters, and that we are natural
meat eaters. By citing fossil evidence
dating back millions of years and integrating observations of primate behavior
to construct an explanation of human evolution, the book concludes that we were
largely hunted rather than hunters, and prey rather than predators.
Cultural assumptions and prejudices in western society along
with faulty science have bolstered the idea that we evolved as a carnivorous hunting
species. This notion may be based on the
assumption that our current violent habits and behaviors are appropriate and “normal”
for our species. We callously exploit and
slaughter billions of animals for food in the U.S. each year.. And if we feel guilty about the suffering we cause
others, it may be strangely comforting to justify it as natural.
But, Hart and Sussman make a compelling case that early
humans were primarily vegetarian and that our ancestors were killed and
consumed by various predator species. And their objective assessment of the biological
and historical evidence affirms those conclusions.
When humans consume diets rich in animal foods, as is common
in affluent countries, we face serious health problems. Dr. Colin Campbell of Cornell University
conducted the world’s most comprehensive study to compare diet and health, and
he concluded, “We’re basically a vegetarian species and should be eating a wide
variety of plant foods and minimizing our intake of animal foods.”
Hart and Sussman write, “There’s something about the
pessimistic image of killer apes, naked apes, war-like apes, cannibalistic apes
that seems a comfortable, albeit ugly, judgment on humanity.” Perhaps this is comfortable because it
comports with our habits and behavior. If we are descended from a lineage of
predators, naturally violent and murderous, then killing other animals could be
attributed to “human nature,”and we could feel less culpable for our behavior. But the authors ask, “…if we evolved from
sociopaths, why do we forge any complaints about historical or modern examples,
such as Caligula, Ivan the Terrible, Hitler or Pol Pot? By this rationale
aren’t they doing what comes naturally?”
Rather than evolving as sociopaths, I think human beings
evolved in cooperative social groups who helped each other survive and avoid
danger. Primates and other animals can be seen today exhibiting techniques for
avoiding predation, such as sounding alarm calls to alert others when danger is
present. Animals use different calls to communicate
different kinds of threats, and it is possible that such warnings in our early
ancestors developed into more advanced communications and eventually
language.
Who we are today is the result of many years of evolution,
both physical and cultural, and in spite of many of our current behaviors, I do
not believe we are naturally a cruel and murderous species. Some miscreants act without conscience, but
most human beings prefer to treat others with kindness.
Our inherent aversion to cruelty can cause people to develop
elaborate rationalizations or mechanisms for denial, including a skewed
interpretation of human history. But I
believe that compassion and caring for others is built into our genetic code
and inherent to humanity, and that keeps me hopeful.