Monday 30 March 2009

common relations

Starfish and urchins are related; both are echinoderms. They share 5-way symmetry. It's obvious in the 5 legs of the starfish but the pattern on a sea urchin's skeleton is also a 5 pointed star.

30th March09, Embleton Bay, 8am

Common Starfish, Common Limpet and common Green Sea Urchins

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