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Project Noah Nature School
Strongylocentrotus purpuratus
Because it is in an aquarium, you can actually see the underside of the sea urchin- the tubefeet and it's mouth. These guys are know for eating kelp holdfasts. (aquarium of the bay, pier 39)
Spotted on Jan 14, 2013
Submitted on Jan 14, 2013
1 Comment
Wow