Sea urchins may just look like a ball of spikes waiting to be stepped on at the tide pool, but there's much more to these ...

Purple urchins in saltwater tanks at the Cultured Abalone Farm, where they feed on kelp, plus dulse and ogo seaweed, in order to develop uni. (Ricardo DeAratanha / Los Angeles Times) Draped atop ...

Ravenous, brainless and covered with spikes, sea urchins have evolved to not be messed with. Off of the south coast of Oregon, one kind of urchin in particular, the purple sea urchin, is enjoying an ...

Biologists thought that marine heat waves lowered urchin reproduction only at lethal temperatures. A new study shows ...

As an environmental disaster unfolds on the ocean floor, where purple sea urchins continue to devastate kelp beds, Mendocino County chef Matthew Kammerer is doing his part to help eradicate them -- by ...

Everyone prepare to have your minds blown six ways to Sunday, because scientists have released another fascinating view of… sea urchins. This time around, they captured cross-sectional images of the ...

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 ...

When a team of scuba-diving marine biologists explored reefs off the central coast of California, they found themselves repeatedly swimming through lush kelp forests interspersed with patches of ...

April 28 update: The team spent the last few weeks of the spring 2022 semester testing their prototype in the University of Colorado Boulder Rec Center pool. New video shows the underwater vacuum in ...

Urchin diver Stephanie Mutz (left) brings in the purple urchins to The Cultured Abalone, where employees such as Devin Spencer (center) and Becca Troske help to fatten them. For a spiny creature that ...

Sea urchins receive a lot of attention in California. Red urchins support a thriving fishery, while their purple cousins are often blamed for mowing down kelp forests to create urchin barrens. Yet for ...

If you’re just starting out in Dave the Diver there’s likely a long list of things you can’t interact with or overcome. Purple Sea Urchin is a fine example of an ingredient you’ll find early and often ...