Stars twinkle overhead, but under the sea, stars huddle together. Sea stars, that is! Sea stars (Asteroidea), commonly known as starfish, are invertebrates called echinoderms — creatures with hard, ...

Add Yahoo as a preferred source to see more of our stories on Google. For the last few weeks, the Schmidt Ocean Institute has been livestreaming submarine dives off the coast of Argentina. The ...

Hundreds of feet below the ocean’s surface, some starfish make their own light. And they can look right back at you too, with a teeny eye on the tip of each bendy starfish arm. p pulse Follow Look at ...

Look at a starfish in a tidal pool and you may think: Ah, there’s one of those pretty, multi-armed sea worms that crawl around and don’t do much. But look deeper and your views might change. Hundreds ...