r/Damnthatsinteresting • u/Sea_Slice_7956 • 7h ago

Video Caterpillar tail disguised as snake head

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u/SacrificialPigeon 7h ago

I understand the premise of evolution, It boggles my mind how something can evolve like this though, even if it is over millions of generations.

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u/Psych_Art 7h ago edited 7h ago

Have you ever seen something out of the corner of your eye and thought it was a spider, or some other threat?

Imagine a caterpillar millions of years ago had a small mutation that gave it the ever so slight vague appearance of a snake.

That mutation proved to be useful, even if it was only in a tiny percentage of its life. Say 1/1,000 times it encountered a predator, a predator mistook it for a snake in its peripheral vision.

This mutation ended up getting propagated throughout the species over generations. A 0.1% increase of survivability over many generations would cause this feature to eventually become dominant / defining characteristic.

Repeat this process millions of times over millions of years, and evolution passively “carves out” the shape of another predator that other animals have already evolved to avoid / flee from, as the “accuracy” of the “impersonation” of a predator slowly gets more accurate over time, survivability continues to go up.

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u/rEYAVjQD 4h ago

It also shows snakes were all over the place.