Mating calls and rituals can be intercepted, or drowned out, by invasive species. Scientists are just starting to understand ...

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

For some animals, reproduction comes at the ultimate cost—their own lives. While this may seem extreme, it's a natural strategy to maximize reproductive success. These species invest everything into ...

Evolutionary biologist Nathan H. Lents details how animal relationships can offer perspective on sexual diversity, social monogamy and gender identity—for humans.

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.

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 ...

City environments subject animals to noise, light, crowding, and fragmented habitats that subtly but powerfully reshape how they communicate.