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

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

In humans, personality similarity between partners can lead to better compatibility and well-being. Is the same true for ...

Dunn’s team analyzed the biological “budget” of these primates and found a direct negative correlation: males with large ...

The Bageni family has a pair of blue balloons outside their mailbox, after this Congolese gorilla clan welcomed twins.

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

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

Homosexual behaviour 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 ...

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

Some 60 primate species, including baboons, chimpanzees and vervet monkeys, express homosexuality, according to a new study ...