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

Same-sex behavior is common across the animal kingdom—more than 1,500 species are estimated to have been observed engaging in ...

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

Biologists tend to look at the animal kingdom and try to categorize things in an organized fashion. But nature has a way of ...

Rapid changes in Arctic temperatures are influencing animal reproductive behavior. A University of Alaska Fairbanks scientist published a study in the current edition of Science magazine, building on ...

The mating game in the animal kingdom is nothing less than fascinating and somewhat weird. Some species pierce, clone, chew, or even fake their way through the mating process. To make survival ...

Source: Shark Bay Research Program, used with permission. Species across the animal kingdom play, suggesting the behavior has benefits. Scientists have long hypothesized a link between juvenile social ...