andrewducker + evolution + nature   3

10 Worst Evolutionary Designs
6 Shark-fetus teeth. A few shark species have live births (instead of laying eggs). The Jaws juniors grow teeth in the womb. The first sibling or two to mature sometimes eat their siblings in utero. Mmm ... siblings.
evolution  science  funny  biology  nature  animals 
july 2009 by andrewducker

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