Karina Brocco French explains that sea stars are like butterflies: They go through metamorphosis. “They start out as adults on the sea floor, and they look like what you expect a starfish to look like ...

Ochre sea stars, an iconic species once common along the Oregon Coast, are making a recovery after years of decline due to a mysterious wasting disease. That’s according to a study published earlier ...

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, ...

In the Pacific Ocean's kelp forests, the seaweed can be taller than trees. This vital ecosystem has been disappearing largely because of the loss of sea stars. They've been ravaged by a mysterious ...

In this photo provided by the Hakai Institute, researcher Alyssa Gehman from the Hakai Institute counts and measures sunflower sea stars in the Burke Channel on the Central Coast of British Columbia, ...