Animals and humans have always coexisted. Before cities, nomadic hunter-gatherers depended on animals for food, transport, ...

Tool use isn’t just for humans! From birds to primates, some animals have mastered using objects to solve problems, hunt, and ...

A biotech company recently announced that it's implanted another pig kidney into a human recipient. Here's what to know.

Analysts at William Blair expect drug developers will continue to perform “at least some animal testing” on their ...

Even animals with very small brains turn out to have cultural traditions, which poses a puzzler for biologists wondering what ...

Japan's government approved a request for stem-cell experiments meant to create an animal-human hybrid and allow it to be brought to term. The experiment, which still requires approval from the ...