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Sea-urchin in hand, Tanzania, Zanzibar - February 2019 #144026136
Description
Sea-urchins or urchins are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed. Sea urchin injuries are puncture wounds inflicted by the animal`s brittle, fragile spines. These are a common source of injury to ocean swimmers, especially along coastal surfaces where coral with stationary sea urchins are present. Their stings vary in severity depending on the species. Their spines can be venomous or cause infection.