Can a starfish really be square? Learn how cushion starfish and rare mutations can create this strange ocean phenomenon.

Add Yahoo as a preferred source to see more of our stories on Google. Having a five-sided body helps starfish sense their surroundings and crawl in any direction quickly. A starfish’s body is ...

On an extended research visit to a friend’s lab in Tokyo, marine biologists Amy Johnson and Olaf Ellers witnessed something they’d never seen before. The starfish in Tatsuo Motokawa’s lab weren’t ...

For many creatures, having a limb caught in a predator’s mouth is usually a death sentence. Not starfish, though—they can detach the limb and leave the predator something to chew on while they crawl ...

Researchers have made a groundbreaking discovery about how sea stars (commonly known as starfish) manage to survive predatory attacks by shedding their own limbs. The team has identified a ...

Where exactly is the head of a starfish? Zoologists, after being stumped for centuries, may finally have an answer. “It’s as if the sea star is completely missing a trunk, and is best described as ...

For centuries, starfish were described as simple animals with arms attached to a central body, but modern evolutionary biology has overturned that picture in a surprising way. Research now shows that ...