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 ...

In a successful transplant in a man with brain death, scientists prevented the immune system from attacking a genetically ...

Scientists have been searching for years for an alternative to human transplants because the donor supply cannot keep up with demand, particularly where kidneys are concerned. More than 90,000 people ...

(CNN) — Doctors at New York University say two new studies show that they are a significant step closer to making kidney transplants from other species a real option in the near future. Scientists ...

NEW YORK, Nov. 13, 2025 /PRNewswire/ -- Researchers have uncovered and then overcome an obstacle that has led to the failure of pioneering efforts in xenotransplantation, in which an animal kidney is ...

The ongoing shortage of organs has led researchers to look to alternatives for those in need of transplants. Indeed, only 3% of Americans with late-stage kidney disease receive a transplant each year, ...