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

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

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

Hidden in the Gobi Desert of Mongolia, these surreal cliffs have an alien feel. Perfectly barren and wind-carved, it’s a ...

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

This bizarre film has to be seen to be believed—but it should definitely be seen. In it, tiny heroin-seeking aliens land on ...