A sunflower star (Pycnopodia helianthoides) with 14 arms looks for food at the bottom of Puget Sound near Des Moines Beach, Des Moines, Washington. The sunflower star is the largest sea star in the world, and can grow to be more than 3 feet (1 meter) across with as many as 23 arms. They initially have only 6 arms when they are young, but grow more as they age.
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