Twenty pint-sized predators—the first of their kind to be bred in captivity and released into the wild—are now crawling around the San Juan Islands. The colorful sea creatures are called sunflower ...

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, ...

For the last decade, California’s offshore seafloors have been missing a massive, colorful predator that keeps kelp-munching sea urchins in check. The sunflower sea star is a big starfish — more than ...