GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Starfish arm regenerating. Severed arm of luzon starfish (Echinaster luzonicus, orange) regenerating 5 new arms (left). Starfish are star-shaped echinoderms. Most can regenerate damaged parts or lost arms and they can shed arms as a means of defence. Photographed off West Papua, Indonesia.
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