Over the past half century, researchers have established that birds evolved from dinosaurs: specifically, the theropods, the ...

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

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

Discover the bizarre facts and fiction about the Virginia opossum's incredible symmetrical reproductive system.

National Aviary officials plan to make this winter the most interactive one yet, with new programs based on past patron ...

After a four-year hiatus, conservationists in New Zealand are relieved that the flightless kākāpo is once again breeding.

Few animal facts are repeated with more confidence or less nuance than the claim that penguins mate for life. It is offered ...

Birds speak different languages – but when danger strikes, some learn to listen, decoding unfamiliar calls through the voices ...