which eventually settle on the ocean floor, growing into adult sea stars. Sea stars also can reproduce asexually through regeneration, which is what happens when the animals lose an arm. Starfish ...

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 ...

The sunflower sea star is a big starfish — more than 3 feet across — that roams the ocean floor in orange, yellow and purple. These invertebrates can grow as many as 24 arms, and they’re ...

The sunflower sea star is a big starfish — more than 3 feet across — that roams the ocean floor in orange, yellow and purple. These invertebrates can grow as many as 24 arms, and they’re ...