No one who has ever kept rats as pets (as I have) will be surprised by a study that appeared in yesterday’s Science and is getting major media coverage. In “Empathy and Pro-Social Behavior in Rats,” the authors report:
Whereas human pro-social behavior is often driven by empathic concern for another, it is unclear whether [...]
Entries Tagged as 'group size'
The Sins of an Evolutionary Psychologist
April 22nd, 2011 · 5 Comments · Emotions, Evolutionary Adaptation, Methodology
In a recent essay on the cult of David Foster Wallace, Nathan Heller notes that DFW’s mature work deals with the crisis of contemporary pluralism: “how to think intelligently and truthfully about the world when that world is full of intelligent and truthful people who adhere to irreconcilable schools of thought.” While Heller [...]
Tags:Alan Sokal·Catholic·confirmation bias·David Foster Wallace·evolutionary psychologist·fantasy·group level selection·group size·Jesus·language·Matt Rossano·Nathan Heller·natural law·Panglossian·parsimony·pluralism·Pope Benedict·postmodernism·resurrection·science·storytelling·supernatural selection·technology·truth·wish fulfillment
Pair Bonding & Ritual Marriage
March 18th, 2011 · 6 Comments · Ecology, Evolution, Ritual
Over the past few years, something like a perfect storm has been brewing over human pair bonding and the profound impacts it has wrought on human social structure. This is a welcome development in a field that has long been dominated by those who wish to root the relatively modern idea of marriage in ancient [...]
Tags:adaptive suite·Ardi·Ardipithecus·Bernard Chapais·bilateral kinship·C. Owen Lovejoy·canine reduction·extended kinship·fictive kinship·Frank Marlowe·group competition·group composition·group size·human origins·Kim Hill·life history·male aggression·male provisioning·marriage·marriage covenants·marriage rituals·pair bond·pair bonding·promiscuity·umbrella hypothesis
Proto-Religious Foragers v. Non-Religious Foragers
February 9th, 2011 · 3 Comments · Archaeology, Evolution, Evolutionary Adaptation, Evolutionary Byproduct, Hunter-Gatherers
In a recent post on group level selection and the evolution of religion, I observed that if we assume such selection was operating on human groups during the Paleolithic, three factors play a major role in determining which groups come out on top. These three factors are: (1) group size, (2) technology, and (3) language. [...]
Tags:altruism·art·behavioral modernity·cooperation·differential fitness·evolution of religion·group agonism·group competition·group level selection·group size·intergroup conflict·language·modern human behavior·ornamentation·Paleolithic·proto-religion·reproduction·Richard Klein·ritual·survival·symbolic thinking·technology·The Human Career·Upper Paleolithic
Group Level Selection? The Non-Evolution of Religion
January 16th, 2011 · 15 Comments · Evolution, Evolutionary Adaptation, Evolutionary Byproduct, History, Ritual
There are a number of scholars who claim that “religion” evolved as an adaptation. What kind of adaptation? A group level adaptation. The story usually goes like this: at some unknown time during the middle or upper Paleolithic, certain groups of hominins developed proto-religious beliefs. These beliefs, which are rarely if ever specified, somehow gave [...]
Tags:altruism·baboons·chimpanzees·cohesion·competition·cooperation·David Sloan Wilson·ecology·evolution of religion·foraging unit·group agonism·group level selection·group size·hominids·hominins·hunter-gatherers·inclusive fitness·intergroup competition·Joseph Bulbulia·kinship·language·Matt Rossano·Nicholas Wade·Paleolithic·primates·Richard Sosis·ritual·technology·tools
The “Sin” of Sodomy and Demographic Imperatives
July 13th, 2010 · 1 Comment · Ecology, Economy, Evolutionary Adaptation, History, Morality, Power, Ritual
When attempting to determine whether something is “natural ” (vis-a-vis yesterday’s post on Catholicism and homosexuality) one good way of investigating the issue is to use the genealogical method. So far as I can tell, there are no hunter-gatherer or pre-Neolithic societies that had taboos against homosexuality. We can therefore trace the history of the [...]
Tags:Assyria·Assyrian Empire·Aztec sacrifice·Babylolian captivity·Catholicism·Christians·demographics·demography·early Christianity·Egyptian captivity·fertility·group size·Hebrews·homosexuality·India's sacred cow·Jewish diaspora·Jews·Judaism·Levant·Lost Tribes of Judah·marriage·Marvin Harris·Mesopotamia·Michael Harner·Mormons·natural law·persecution·pork eating proscription·procreation·prohibition against homosexuality·Ralph Tanner·ritual regulations·same-sex preference·sin of sodomy·slavery·sodomy·taboo·taboos·The Social Ecology of Religion·Vernon Reynolds·warfare
