A snake mimics a spider

Why Evolution Is True

If you like evolution and natural history, you should already be reading Ed Yong’s terrific site Not Exactly Rocket Science at National Geographic. In his short post “This snake has a tail that looks like a spider,” he describes a remarkable and newly found type of mimicry.

The snake is, appropriately, the spider-tailed viper (Pseudocerastes urarachnoides), first described formally only 7 years ago from Iran.  It was known since the sixties, but the one specimen’s tail was dismissed as a tumor or deformity. We now know from other specimens that this is indeed a species-specific trait. As Yong notes:

The tail is bizarre. If you saw a close-up photo of it, you’d struggle to believe that there was a snake at the other end. There’s a large orange or grey bulb at the tip, and the scales just before that are bizarrely long and thin…

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About marksolock

I am a lawyer in Chicago with interests in pop culture and current politics.
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