You say sea star, I say starfish. Though I avoided the whole thing in the title here by calling this languid beauty by its phylum name, so there. Photographer John Turnbull, who took this shot in Henry Head, Australia, calls it a Mosaic seastar (Plectaster decanus) – but no matter what you call it, it's stellar.
Would you like to see your nature photo featured as the TreeHugger photo of the day? Join TreeHugger’s Reader Photo Pool on flickr and add your pictures to the group.