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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. While they have no backbone, sunflower sea stars (Pycnopodia ...

Before 2013, divers on North America's west coast rarely saw purple sea urchins. The spiky animals, which are voracious kelp eaters, were a favorite food of the coast's iconic sunflower sea stars. The ...

More than a decade after a mysterious sickness began killing billions of sea stars off the Pacific Coast, scientists say they've identified the bacteria that causes the deadly disease. A team of at ...

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 ...

After years of scientific sleuthing, a team of West Coast researchers reported that they have identified a particular strain of ocean bacteria that has killed more than 6 billion sea stars since 2013.