Monday, June 27, 2011

Bilateral Symmetry

Forbes' sea star: Asterias forbesi
1 Central Wharf, Boston, MA

Winged sea star: Pteraster militaris
1 Central Wharf, Boston, MA

1 comment:

  1. This is actually quite interesting. MOST folks are under the (mistaken) impression that sea stars are radially symmetrical. Superficially they appear so but they have anatomical differences (such as a madreporite) that makes them bilateral. Great job!!

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