the.com/milk snake

means A nonvenomous North American snake (Lampropeltis triangulum) whose bright red, black, and white banding mimics the deadly coral snake, scaring off predators that can't tell the difference.

from The name comes from an old farmyard folk belief: these snakes were often found in barns and were accused of sneaking up to cows to suck them dry of milk. They were really there hunting the rodents the barns attracted — but the milk-thief story stuck to the name. "Snake" traces back to Old English snaca, from a Germanic root meaning "to crawl."