GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY GEORGETTE DOUWMA / SCIENCE PHOTO LIBRARY
Featherstar on gorgonian coral. The featherstar is a marine invertebrate. It is an ancient and primitive echinoderm, a member of the group of invertebrates that includes the starfish. It uses its feathery and fragile arms to catch and convey microscopic plankton and detritus to its mouth at the base of its arms. Unlike the closely-related sea lily, a featherstar is a free-swimming animal. Photographed at Misool, Raja Ampat, West Papua, Indonesia.
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