Primatology
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 3, 2010 Artist rendering of Darwinius. Image: Julius T. CsotonyiLast year's publication of the fossil primate Darwinius masillae claimed it to be the oldest haplorhine primate ever discovered and a multimedia blitz campaign touted the find as the ultimate "missing link" (an erroneous term that should forthwith be forbidden to all science journalists). Brian Switek at Laelaps (who has an excellent review of this paper) made headlines for challenging the way that this fossil primate was rushed to market, and it seems that his concerns were more than justified.
According to Brian's Op-Ed…
emjohnson | March 2, 2010In light of the recent discussion on animal testing and animal rights I thought a few additional points would be valuable. It is a fact that animal testing leads to some necessary medical advances that save lives. Anyone who would say differently doesn't have the slightest clue what they're talking about and should be dismissed out of hand. The question is an issue of how many, especially given the ethical concerns. It is also a fact that the vast majority of animal testing serves more peripheral goals, categorized as applied studies that include cosmetic, chemical and pharmaceutical…
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 28, 2010Four years ago today a young researcher at the beginning of his graduate program in primatology sat down with the most intelligent, engaging, and downright beautiful fellow primate he'd ever had the opportunity to share a beer with. Freshly minted with her Master's degree in women's studies (emphasizing public policy), our conversation quickly moved to a discussion of evolution and male vs. female strategies. It's only in hindsight that it seems bizarre to be talking about theories of male promiscuity and female choosiness on a first date. I had recently returned from my first primate…
emjohnson | February 26, 2010(updated below)
My piece for The Huffington Post has just gone up concerning the latest incidents involving neuroscientist Dario Ringach and the targeting of his children by animal rights extremists. For more on this see Dr. Free-Ride, PZ, PalMD, Scicurious, MarkCC, Nick Anthis, Drugmonkey and Orac.
Dear ALF,
I address you not because your organization is directly behind these latest abuses, but because your organization is emblematic of the radical approach that some animal rights activists have been inspired to take. I want you to know that I support your goals at the same time that I…
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 12, 2010 The Open Laboratory?! You're kidding? Woo hoo!!!!!!!!My post for Nature Network, Male Chauvinist Chimps or the Meat Market of Public Opinion? has been selected for this year's Open Laboratory as an example of the year's best online science writing. For those who have followed the developments of Ardipithecus ramidus, it will interest you to know that Owen Lovejoy used this study as the basis for his argument that male provisioning was responsible for the origin of bipedalism.
Many thanks to Bora and Scicurious (this year's guest editor) for selecting my piece. They should be…
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 | 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 28, 2009As a species we are consumed by love. Ask yourself, how many cultural productions (films, stories, songs, dances, arts) do not have love, the loss of love or the absence of love as their central theme? Would you be satisfied with what was left over? That fact that love has so much power over us is just one reason why evolutionary research is so fascinating.
A well-worn trope of human culture is mens obsession with female infidelity. Othello. Madame Bovary. Desperate Housewives. These are just three Western examples of this concern that are paralleled in nearly every society throughout…
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…