Chinese doctors achieved the world’s first gene-edited pig liver transplant into a living human, showing the organ could ...

In the animal kingdom, penises can be spiked, split, corkscrewed—even detachable. They're one of the most diverse structures ...

Ancient wolves lived with people on tiny Baltic island. Their bones show shared food and long contact that hints at early ...

Dogs were the first of any species that people domesticated, and they have been a constant part of human life for millennia.

A much-hyped fashion show with wool from “gay rams” obscures the brutal reality of an industry that exploits sheep sexuality ...

It’s five thousand years ago, and a group of humans were living on a limestone rock in the Baltic Sea in Northern Europe rock ...

Researchers discovered the pancreas in pigs and humans share the same developmental timeline and gene activity.

Modern researchers know about the cuckoo’s cross-species brood parasitism – but one Roman emperor observed this more than 700 ...

Experts split as CDC halts primate studies tied to RFK Jr.’s MAHA agenda, leaving hundreds of research monkeys in limbo.

From obesity in cats and dogs and osteoarthritis in pigs, to cancer in whales and high blood glucose in racoons, chronic ...

Researchers transplanted a single-edit α-Gal knockout pig kidney and thymus into a brain-dead recipient, followed by 61 days ...