Christina Black soaked her foot in hot water and Epsom salts for several weeks, but the sea urchin's spine (which she named ...

Though incidents of this kind are usually nothing to be too alarmed by, Megan had a valid reason to be worried about her son.

Diadema Savignyi A recent visitor came out of the sea with more than 400 sea urchin spines stuck in his body, according to marine biologist Dr. Terney Pradeep Kumara. In another incident, a foreigner ...

sometimes called tongues—the sea urchin’s wobbly gonads. Karoline O.A. Pettersen Sea urchins with their skin and spines removed. Jennifer Steen Booher The frigid waters north of the Arctic Circle.

Sea urchins have a variety of external organs that can be found in among the spines. The photograph below is of the oral area of a regular sea urchin. The most important external organs are the ...

Katie Cresswell senior research fellow at IMAS with a long spine sea urchin. Katie has conducted research into the impact of commercial fishing of the long spine sea urchin population. Picture ...