January 14, 2013

How Did Some Animals Become Venomous?

Carl Zimmer, Phenomena


AP Photo

You are not venomous. Your spit, while unpleasant, cannot kill. Your dog is not venomous, either. Neither is the squirrel on the sidewalk, the bullfrog in the pond, or the dragonfly floating by your window.

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TAGGED: Evolution, Venom

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