A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...

The researchers found that same-sex behavior was more common in primate groups with clear hierarchical structures and those ...

Homosexual behavior in primates has a deep evolutionary basis and is more likely to occur in species that live in harsh ...

A. The formulations of Lorenz and Tinbergen -- The comparative method in studying innate behaviour patterns / K.Z. Lorenz -- B. Some criticisms of the views of Lorenz and Tinbergen -- Is modern ...

While many studies have looked at possible evolutionary links between men's strength and sexual behavior, a Washington State University study included data on women with a surprising result. Women, as ...

Trying to understand human behavior (a basic feature of our species, shaped by natural selection) without understanding evolutionary principles would be like trying to understand the details of a car ...

Scientists have long wondered whether evolution would follow the same path if history had a chance for a “do-over.” New research suggests that it does, when it comes to the brain and its regulation of ...

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