Bonds between same-sex individuals help apes and monkeys to manage conflict and strengthen alliances, especially in dry ...

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

A new study by researchers at Imperial College London and published on Monday in Nature Ecology & Evolution could help shed ...

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

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

The behaviour was more common in species that lived in harsh environments with limited access to food. Read more at ...

Sexual behaviour among same-sex pairs is common in apes and monkeys, and a wide-ranging analysis suggests it does boost ...

Same-sex sexual behaviour has been recorded in around 1,500 species, from insects and starfish to birds and mammals. Yet sex ...

Many animals do something that still surprises researchers: females often mate with more than one male. This ...

Known best for their ability to "walk" on the sand and coral where they usually live, new research shows epaulette sharks ...