When danger strikes, humans usually have two choices — run or fight. But in the wild, some animals have figured out a third, much stranger option: drop part of their own body to survive. It’s called ...

Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal kingdom—function permanently without it. This may be relevant in future ...

We usually think that losing a body part is a permanent thing. But in nature, some animals have a superpower we can only dream of: they can regrow lost parts of their bodies. From arms to tails, some ...