Add Yahoo as a preferred source to see more of our stories on Google. A close-up view of a vibrant red starfish arm underwater, showing small tube feet extending from its textured surface.© A-Z ...

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 ...

Imagine waking up to find your entire body gone — no torso, no limbs — just a head that has expanded, split into five distinct sections. That sounds like a horror film or a scene from science fiction.

A close-up view of a vibrant red starfish arm underwater, showing small tube feet extending from its textured surface.© A-Z Animals Imagine waking up to find your entire body gone — no torso, no limbs ...