Purple sea urchins, beware: There’s a purple urchin-eating predator on the horizon — and its name is the sunflower sea star. That’s the plot line coming from a small upstart research facility in Moss ...

I see my first sunflower sea star in a plastic container barely large enough to hold a sandwich. It’s eating lunch. I am in a garagelike government laboratory on the curled tip of Washington state’s ...

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.