Red Sea Urchin California Sea Grant
Long-Spined Sea Urchin (Diadema antillarum) - ANGARI Foundation
When overcrowded, sea urchins turn cannibal
The Royal Urchin (Mespilia globulus), is also known as the Globe Urchin, Sphere Urchin, Blue Tuxedo Urchin, and Tuxedo Pincushion Urchin. It has
Royal Tuxedo Urchin
Sea urchins are killing Monterey Bay's kelp forests. Help is on the way, with hammers., News
Black sea urchin extract shows promise in combating atherosclerosis
URI scientist to lead effort to boost sea urchin farming in New England – Rhody Today
Sphaerechinus granularis - Wikipedia
Urchin Slayers Are Trying to Save the Underwater Rainforest
Get to know your neighbor: Sea Urchin, Echinoidea - WILDCOAST