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TOP 10 ANIMAL LOVERS : Whiptail Lizard

9. Whiptail Lizard

This amphibian doesn't waste any time looking for Mr. Right or even Mr. Right Now — in fact, in this species, there's no "Mr." anything! Thanks to evolution, males are nonexistent, but the whiptail lizard ladies have found a way around in vitro. A female will get a surge of testosterone, mimicking male behavior enough to trigger reproduction in another female, who can lay eggs and fertilize herself. How's that for girl power?