Consider the sea urchin. Specifically, the painted urchin: Lytechinus pictus, a prickly Ping-Pong ball from the eastern Pacific Ocean. The species is a smaller and shorter-spined cousin of the purple ...

Lacking natural predators and able to survive long after food sources are diminished, purple sea urchins are devastating kelp forests, an important carbon sink. The founders of a Newport startup have ...

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 ...

Green Sea Urchin (Strongylocentrotus droebachiensis) A close up of a Green Urchin photographed while scuba diving in British Columbia, Canada. Often harvested for uni ...

South of Tampa Bay, in Florida, wedged between a quiet neighborhood and a mangrove forest, custom-designed aquariums are home to thousands of sea-urchin larvae that tumble and drift through the water.

With spikes as long as knitting needles, long-spined sea urchins may look like underwater villains, but their appetite for algae makes them the unsung heroes of Caribbean reefs. Courtesy of the ...

New research has uncovered a mass die-off of sea urchins living in the Canary Islands—one that could signal an ongoing marine pandemic. Reading time 3 minutes An apocalyptic serial killer of sea ...

Jeremy Day received funding from University of Newcastle, Ecological Society of Australia, Royal Zoological Soceity of New South Wales and Fisheries Research and Development Corporation. Long-spined ...

Sea urchins have mixed reviews in the saltwater aquarium scene. Some people love them because they are fascinating to watch and make outstanding algae eaters. Others find them difficult to care for ...