Finding a mate is hard in the animal kingdom! As these strangest animal mating rituals show, it sometimes gets even more ...

When it comes to animals romancing in the wild, things get weird—really weird. Some animals offer bizarre gifts, some put on daring dances, and others? Well, let’s just say things get really messy.

All animals need sleep. When humans or animals don't get enough, it can lead to trouble paying attention, irritability, and other ill effects. And yet, researchers reporting in the journal Current ...

Koalas have a well-earned reputation for being dopey. Sleeping 19 hours out of every 24, and feeding for 3 of the remaining 5 hours, there doesn't seem to be much time for anything else in their ...

Some animals reproduce only once before dying. This life strategy, called semelparity, sees organisms channel all energy into reproduction. Mechanisms include stress hormone overload, sexual ...