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What's the animal with the least brain that sleeps? Jellyfish apparently take prolonged rests on the sea floor which is a kind of sleep.
by neaden 10y ago
What's the animal with the least brain that sleeps? Jellyfish apparently take prolonged rests on the sea floor which is a kind of sleep.
- chc 10y agoIf you count that as a kind of sleep, then it would surely be them, since you can't have less brain than a jellyfish.