In Northern California, purple sea urchins are decimating kelp forests. Though the species of urchin causing problems may vary by region, the damage is the same. NNehring/iStock This article is from ...

Scientists have found a delicious solution to an invasive species problem: eating long-spined sea urchins could save Tasmania's kelp forests, Cosmos Magazine reported. Rising ocean temperatures are ...

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 ...