The animal kingdom is full of hearts that work in unexpected ways. Some pump differently while others change shape or function entirely. These adaptations help animals survive extreme environments.

One study from 2015, found that 70% of gifts are duds. No matter. The wrapping keeps the female occupied as the male mounts ...

A variety of studies are showing that rough-and-tumble play is important for animals and kids alike.

Scientists studying thousands of rats discovered that gut bacteria are shaped by both personal genetics and the genetics of ...

Evolution is slow, but with the right experimental set-up—and enough time to spare—you can watch nature do its methodical ...

A woman ventured to an animal show with her boyfriend and volunteered to take part, with a large bird flying towards her ...

The results of inbreeding can be very distressing to witness. In this Instagram post, we see a captive lion with skull ...

From giant stick bugs to rarely seen sea creatures, these animal videos fascinated us—and led to new scientific discoveries.

While travelling around the world, Santa is always depicted to be guided by his nine reindeer, but people have only just ...

Conservationists are hoping to strengthen regulations at a wildlife trade conference on birds, reptiles and other animals ...