Human–animal chimaeras are an exciting yet challenging area of research. Human cells are coaxed to grow in animal embryos, allowing researchers to study human tissue development. But the long-term ...

We got a tip about a meat plant selling pig intestines as fake calamari, wondered if it could be true, and decided to investigate. Doppelgängers, doubles, evil twins and not-so-evil twins ...

Brought over as domestic stock by early settlers, America’s earliest farm pigs escaped their enclosures and became feral in no time. The invasive and ecologically destructive species was ...