“The phenomenon of larval cloning is well known,” Allen explained. Other echinoderms—even other starfish — reproduce through larval cloning. Even coral larvae clone themselves. “But no one had thought ...

California’s offshore seafloors have been missing a massive, colorful predator that keeps kelp-munching sea urchins in check.

The 2016 winner was a time-lapse video depicting an eight-week-old starfish larva searching for food by William Gilpin of Stanford University. A predatory protozoan showing off its hunting ...