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.

Using genetics-based methods, a multinational team of scientists said in a study published this week in the journal Nature that starfish are all head and no torso. Starfish larvae, like those of most ...

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 ...