Late winter is mating season for several animals, and that means more movement, bolder behavior, and a lot more unexpected encounters around neighborhoods. Besides coyotes, there are so many animals ...

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 ...

Scientists have documented same-sex behavior in many animals. Learn what it means, how it varies, and why human labels can mislead.

Love is complicated enough for humans, but in the animal kingdom, courtship can get downright bizarre as you’re about to see in the videos of the strangest animal mating rituals below. From underwater ...

Fatal attractions are a standard movie plotline, but they also occur in nature, with much more serious consequences. As a conservation biologist, I’ve seen them play out in some of Earth’s most remote ...

While lifelong partnerships may seem rare, many animals form bonds that last for years or even a lifetime. From birds that reunite with the same partner season after season to mammals that raise ...