Starfish (cushion sea star, Oreaster reticulatus), watercolor pencils, watercolor and gouache
About the illustration:
Commissioned by: Smithsonian Institute
Further information about this illustration is detailed here: coral reef
More information about starfish (cushion sea stars):
Starfish have radial symmetry. According to Wikipedia, ancestors are believed to have had bilateral symmetry (having distinct left and right sides). The underside (ventral) of the starfish has tube feet by which the starfish moves. Starfish eat oysters and clams. Their two stomachs are differentiated in use, one for engulfing prey and the other for digestion. They can regrow arms that are cut off.
Phylum: Echinodermata (marine animals including crinoids, starfish, sea urchins, sand dollars, and sea cucumbers)
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