“The point that she opens the egg sac is the point that she stops feeding,” says Mor Salomon, a biologist at the Israel Cohen Institute for Biological Control. “We have tried giving them food in the lab, but it just doesn’t work—they just don’t feed.” -- Absurd Creature of the Week: The Spider Mother That Barfs Up Her Guts to Feed Her Kids, by Matt Simon for Wired.
"Hundreds (maybe thousands) of spiders congregate between poles in the town of Santo Antonio de Plantina / PR." [more inside]
Big dust up about kin selection. Biologists E.O. Wilson, Martin Nowak, and Corina Tarnita publish a paper attacking kin selection, the idea that the reproductive success of a gene is influenced not only by its effects on its carrier, but also by its effects on related individuals (kin) carrying the same gene. 130 some odd other biologists respond. Richard Dawkins weighs in. Some talking bears offer a summary. [via]
"From a review of the anthropological and evolutionary literatures [Edge.org]... there were three best candidates for being additional psychological foundations of morality [embedded video], beyond harm/care and fairness/justice. These three we label as ingroup/loyalty (which may have evolved from the long history of cross-group or sub-group competition...); authority/respect (which may have evolved from the long history of primate hierarchy, modified by cultural limitations on power and bullying...), and purity/sanctity, which may be a much more recent system, growing out of the uniquely human emotion of disgust, which seems to give people feelings that some ways of living and acting are higher, more noble, and less carnal than others. [more inside]