Starfish can shed their arms to survive. How do they manage this feat? Scientists from Queen Mary University of London have identified a neurohormone that triggers this phenomenon. This discovery ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. CHICAGO — We’ll give the people what they ...

Photograph of a specimen of the common European starfish Asterias rubens with a regenerating arm. Starfish shed arms (autotomy) when attacked by predators and then regenerate a new arm to replace the ...

Part 1: Comparative biology and ecology. Phylogeny of the asteroidea / Andrew S. Gale ; The asteroid arm / John M. Lawrence ; Functional biology of asteroid tube feet / Elise Hennebert, Michel Jangoux ...

In the name of survival, starfish sever their own body parts to escape predators. They will also eventually regenerate those lost limbs, but how this biological process works has remained a mystery.

Starfish are some of the strangest creatures of the animal kingdom—so much so that scientists didn’t even know for sure if the animals had heads. A new study from the Stanford University and UC ...

At first glance, starfish seem to be all limbs, with five appendages lined with rows of tube feet giving them their signature shape. Marine scientists have long wondered how they evolved to have such ...