We know that some animals are bilaterian—meaning they display bilateral symmetry—while others are not, but nature is rarely ...

A biotech startup seeks to end animal testing with the creation of headless human bodyoids. Sad sack or serious salvation? A small group of scientists is angling to replace laboratory animals with ...

Add Yahoo as a preferred source to see more of our stories on Google. Starlet Sea Anemone Nematostella Vectensis Sea anemones may look alien, but scientists just found out they're hiding an ancient ...

Here’s what you’ll learn when you read this story: With more than 100,000 people in need of an organ transplant in the U.S. alone, scientists have turned toward perfecting human-animal chimeras as a ...

Sad sack or serious salvation? A small group of scientists is angling to replace laboratory animals with living “organ sacks” grown from human cells. R3 Bio, a billionaire-backed biotech startup, is ...