The sunflower sea star occurs throughout the Pacific coast from Alaska to Southern California. It can be found in intertidal zones, sandy and gravel substrates and rocky bottoms to depths of 98 feet. This is the largest sea star, reaching about 39 inches in diameter and weighing around 11lbs. 

Younger or juvenile sunflower sea stars begin life with five arms, while adults will have up to 24 arms. It ranges in coloration as well, from purple to red, pink, brown, orange and yellow. Most sea star species have a mesh-like skeleton that protects its internal organs, but restrict its mobility. The sunflower sea star's skeleton, located on its surface, is comprised of a few unconnected pieces, allowing this species better mobility and the ability to stretch its body to engulf larger prey.

Look for the Sunflower Sea Star in the Cold Water Quest gallery.

• The sunflower sea star feeds on urchins, large clams, northern abalone, sea cucumbers and snails.
• This species can move very quickly, up to 10 feet per minute, using its 15,000 tube feet.
• It can live up to 8 years.
• This sea star helps control the sea urchin population.
• Sunflower sea stars reproduce between March and July.

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