Great Apes
emjohnson | June 29, 2010Author's Note: The following is an excerpt from my review of Sex At Dawn: The Prehistoric Origins of Modern Sexuality. For additional information see my posts Reexamining Ardipithecus ramidus in Light of Human Origins, Those Cheating Testicles, or Who's Your Baby? as well as Helen's Lament and the Origins of Forbidden Love. Christopher Ryan also blogs at Psychology Today.
When we think of the first swinger parties most of us imagine 1970s counter-culture, we don't picture Top Gun fighter pilots in World War II. Yet, according to researchers Joan and Dwight Dixon, it was on military bases…
emjohnson | June 15, 2010Chimpanzees have culture (or not) depending on your definition.Image: Irish Wildcat / Creative Commons
Author's Note: The following is an expansion on my reply to anthropologist Dan Sperber on the PLoS ONE article "Prestige Affects Cultural Learning in Chimpanzees."
Culture is like art or pornography, it's hard for people to define but everyone knows it when they see it. Cultural anthropologists have long struggled to develop a consistent definition of the very thing that they study, a problem that has resulted in bitter arguments between scholars that, to an outsider, may seem as esoteric…
emjohnson | May 27, 2010 New research finds chimpanzees follow prestigious models when learning new tasks. Monika Thorpe / Creative CommonsIf one were to play psychiatrist to the natural world, most human beings would be committed for our certifiable obsession with other peoples' behavior. We compulsively examine, study, appraise, size up, and scope out what those around us are doing and then gossip with others about what we've seen or heard. New ideas or behaviors are especially compelling and will often have cultural critics discussing them at length, whether they're tribal elders or the United…
emjohnson | April 22, 2010A new study shows that chimps sacrifice their own advantage if they earned it unfairly.Image: Owen Booth / Creative Commons
Fairness is the basis of the social contract. As citizens we expect that when we contribute our fair share we should receive our just reward. When social benefits are handed out unequally or when prior agreements are not honored it represents a breach of trust. Based on this, Americans were justifiably outraged when, not just one, but two administrations bailed out the wealthiest institutions in the country while tens of thousands of homeowners (many of whom were…
emjohnson | March 25, 2010Culture defines who we are but few can explain where it comes from or why we adopt one tradition over another. In the classic musical The Fiddler on the Roof the main character, Tevye, muses on this basic fact of human existence:
Here in Anatevka we have traditions for everything... how to eat, how to sleep, even, how to wear clothes. For instance, we always keep our heads covered and always wear a little prayer shawl... This shows our constant devotion to God. You may ask, how did this tradition start? I'll tell you - I don't know.
The origin of particular cultural traits in human…
emjohnson | March 19, 2010An adolescent female orangutan practices her ape stroke.Image: Anne Russon / New Scientist
Orangutans (Pongo pygmaeus) are not the most dexterous of creatures (especially for primates) and this is particularly true when they're in water. Zoos across the country have removed the moats surrounding their exhibits precisely because of their tendency to sink. However, researchers Anne Russon, Purwo Kuncoro, Agnes Ferisa, and Dwi Putri Handayani have just published a paper in the Journal of Comparative Psychology showing how a group of orangutans on Kaja Island in Indonesia have developed an…
emjohnson | March 18, 2010 Image Source: Monkeys in the NewsMonkeys In the News has alerted me to an Associated Press story today about a Nevada research lab, part of Charles River Laboratories, that is one of the world's largest suppliers of clinical and laboratory research services to pharmaceutical and biotech companies. The company was fined after thirty monkeys died as the result of not following proper procedures. While it is clear that there are necessary medical reasons for using primates in invasive experiments, I think everyone can agree that strict regulations need to be put in place to prevent…
emjohnson | March 16, 2010 Looking nonhumans in the eye. Image: Elephant Man by Chris GallucciIn 1927 Bertrand Russell wrote his now famous essay "Why I Am Not A Christian" and outlined the general reasons for why he rejected such an ideology. This approach has been followed by other writers such as Ibn Warraq in Why I Am Not A Muslim, Ramendra Nath in his essay "Why I Am Not A Hindu" and David Dvorkin in his "Why I Am Not A Jew." My own choice of title is not in the same tradition as these other writers (since I agree with much of what humanism has to offer), but I do share with them a concern over…
emjohnson | March 1, 2010It's wonderful to see that my Open Letter to the Animal Liberation Front has generated discussion on this important topic. The issue as I see it is really quite simple and boils down to two essential issues: the benefits to science versus the ethics of invasive animal experimentation. The British Medical Journal study and BUAV report (pdf) that I cited hold the position that the harm done to animals, particularly primates, is out of proportion to the benefits that come from such research. Furthermore, our current understanding about primate cognition, emotional complexity, and their rich…
emjohnson | February 16, 2010 Bonobos retain juvenile traits related to tolerance and cooperation. Image: Vanessa WoodsHow many times as a kid would your parents tell you to grow up and act your age? It turns out that not acting our age may be the very reason why we're so successful as a species.
Brian Hare and colleagues have just released a video (see below) showing a bonobo juvenile voluntarily helping another individual out of their cage to share a few delicious treats. In their study, to be released March 8 in Current Biology, the Duke researchers wanted to see if bonobos would choose to share with…
emjohnson | January 23, 2010
Sapolsky's talk begins at 5:00 after an introduction by the Stanford Provost.
The neuroendocrinologist and primatologist Robert Sapolsky has been one of my primary scientific influences and the reason I pursued my masters and PhD in primate behavior and evolution. Not only is he a brilliant researcher and writer, he's also a genuinely kind and supportive guy. Back in 2001, as an undergraduate, I wrote what was then my first fan letter to a neuroscientist. To my surprise he wrote back and we had an ongoing correspondence. He even recommended a piece of writing I had sent him to his editor…
emjohnson | January 9, 2010
In this TED Talk Susan Savage-Rumbaugh discusses bonobos housed in a bispecies environment that have been taught to communicate using pictographs. In the talk she suggests that biology isn't what made humans unique from nonhuman apes, but rather argues that it was cultural developments and social learning. Quite obviously there are some biological differences (around 1% of our genes differ, some of them coding for proteins important for brain formation). However, I challenge you to watch Kanzi build a fire and perform activities that require precise hand-eye coordination (including the…
emjohnson | January 4, 2010 Dolphins, such as this individual caught and used by the US Navy, could be granted personhood rights that protect them from such abuse. Image: United Press InternationalIn Douglas Adams' series The Hitchhiker's Guide to the Galaxy it turned out that dolphins were super intelligent beings from another world who felt protective of the hairless ape creatures that were dithering about feeling self important:
On the planet Earth, man had always assumed that he was more intelligent than dolphins because he had achieved so much--the wheel, New York, wars and so on--while…
emjohnson | October 29, 2009At the Sanaga-Yong Chimpanzee Rescue Center, chimpanzees form a gallery of grief, looking on as Dorothy--a beloved female felled in her late 40s by heart failure--is borne to her burial.Image: National Geographic / Monica Szczupider
The Prancing Papio has brought attention to this powerful photograph presented by National Geographic showing chimpanzees focused on the body of a recently deceased member of their community. I still remember the powerful effect it had on me when I saw Jane Goodall's The People of the Forest which showed how one young male, who was fully capable of taking care…
emjohnson | October 21, 2009Female chimpanzee with her infant requests meat after a successful hunt.
Image: David Bygott / Tree of Life Web Project
Owen Lovejoy's recent paper about Ardipithecus ramidus and human origins (see my detailed critique here) bases its argument on the male provisioning observed in chimpanzees. However, what went unacknowledged in his theory was the inherent gender bias it represented. A perfect example of this was observed in April with the release of the very study on provisioning behavior that Lovejoy used as the basis for his idea.
From the press introductions alone, you would have…
emjohnson | October 18, 2009Grand evolutionary dramas about human origins capture our imagination and the stories provide context as to how we view ourselves. They are the scientific version of creation myths. However, unlike Adam and Eve being fashioned in the garden or humanity being vomited up by the giant Mbombo (as the Bakuba people of Congo believed), scientific origin stories are rigorously critiqued based on the best available evidence.
Friedrich Engels, a sociologist and future collaborator with Karl Marx, wrote one of the earliest scientific human origin tales in 1876. In his essay "The Part Played by…
emjohnson | October 15, 2009There may need to be a significant revision in the recent description of one of humanity's oldest ancestors. Ardipithecus ramidus (or "Ardi" for short), the 4.4 million year old hominid fossil discovery, has been a godsend to paleoanthropologists (pun intended). But one of the key researchers has made what could be a serious error in his interpretation.
Christopher Ryan, who writes for Psychology Today at his blog Sex at Dawn (also the title of his forthcoming book) has discovered evidence that could undermine Owen Lovejoy's argument about human sexual evolution ever since Ardi:
In a…
emjohnson | September 28, 2009SUNY-Binghampton evolutionary biologist David Sloan Wilson currently has a response to my review "Survival of the Kindest" up at Seedmagazine.com. In his response he suggests that Dawkinsian critics such as Frans de Waal and Joan Roughgarden have adopted a group selection perspective in all but name:
Rejecting group selection was wrong.
The rejection of group selection as an important evolutionary force in the 1960s was one of the biggest blunders in the history of evolutionary thought. The extremely simple idea--I was just able to describe in just a few lines--was branded as so wrong that…
emjohnson | September 24, 2009Seed magazine has just posted my review of Frans de Waal's The Age of Empathy: Nature's Lessons for a Kinder Society. I wanted to use this opportunity to thank Nikki, Evan, Bora and everyone else that helped in developing this piece. For posts on related topics please see Misunderstanding Dawkins, The Sacrifice of Admetus, Bonobos "Red in Tooth and Claw", The Evolution of Morality and Laboratory Evidence for the Breakdown of the Selfish Gene.
In a fitting metaphor, the most recent experiment with social darwinism resulted in mass extinction. Former Enron CEO Jeffrey Skilling claimed he was…
emjohnson | September 21, 2009Heracles battles Death for generosity's sake / Frederic Lord Leighton (1869-71)
Whereas great scientific theories stand the test of time when they accurately predict the natural world through repeated empirical trials, great literature transcends the ages when it speaks to universal qualities of human experience. Such inspirational works can also, without the authors realizing at the time, reveal the sublime beauty and tragedy of our evolutionary drama. Few classical authors have tapped into this zeitgeist of biological experience as the Greek tragedian Euripides. The conflict between…