Animals can be so sweet.

Pigs can be smart, affectionate pets—but they’re often misunderstood. Here’s what to know about owning a pet pig, from growth ...

With their immense size and pugnacious attitudes, bison have few natural predators. Their natural enemies include humans, ...

Chinese researchers are reporting new steps in the quest for animal-to-human organ transplants — with a successful pig kidney transplant and a hint Wednesday that pig livers might eventually be useful ...