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

Deep in the New Zealand forest, the booming thud of the kākāpō’s ancient mating ritual sounds more like a bass speaker than ...

Birds are some of nature’s most beautiful creatures — but a few of our feathered friends are truly bizarre — like these 25 ...

When you think of birds, you might imagine wings flapping silently against a blue sky. The kākāpō, however, lacks these ...

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

‘Le Petit Mort’ or ‘the little death’ is the euphamistic term for orgasm. But for some animals, sex and death are more ...

New Zealand's critically endangered flightless parrot, the kakapo, started breeding last week for the first time in four ...

The findings, published in the journal Biology Letters, showed that strangers were more likely to approach each other with ...