Most poisonous sea urchin
Last updated: October 12, 2017 at 19:21 pm
Flower sea urchin (Toxopneustes pileolus). The flower sea urchin can deliver a severe sting even if its spines do not puncture its victim. The sting is extremely painful and often requires medical attention.
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Jeffrey Gallant is the Editor-in-Chief and Records Keeper of the Diving Almanac. He is also a contributing editor of DIVER Magazine, and the scientific director of the Greenland Shark and Elasmobranch Education and Research Group (GEERG). Jeffrey started diving in 1982.