A transparent sea cucumber from the family Elpidiidae underwater, highlighting internal structures, with text discussing its shape-shifting ability.
Shape-Shifters
Image from the Hawaii Institute of Marine Biology, "Deep-sea creatures of the Papahānaumokuākea Marine National Monument," University of Hawaii. Download larger version (png, 683 KB).
Shape-shifters…? Sea cucumbers can shape-shift and squeeze into tight spots to evade predators and navigate the ocean floor! It’s been spotted at 1,494 meters (4,902 feet) below the surface.

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