30/01/2008

Females decide whether ambitious males float or flounder

Aggression, testosterone and nepotism don’t necessarily help one climb the social ladder, but the support of a good female can, according to new research on the social habits of an unusual African species of fish.

Do you want fries with that, Mickey?

Using mice as models, researchers at the Max Planck Institute for Evolutionary Anthropology traced some of the differences between humans and chimpanzees to differences in our diet. The findings appear in the January 30 issue ...

Why don't chimpanzees like to barter commodities?

For thousands of years, human beings have relied on commodity barter as an essential aspect of their lives. It is the behavior that allows specialized professions, as one individual gives up some of what he has reaped to ...

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