Hippos Sleep Underwater… Without Drowning 😳🦛 | Nature’s Autopilot
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Hippos Sleep Underwater… Without Drowning 😳🦛 | Nature’s Autopilot
Imagine falling asleep… at the bottom of a river. Meet the Hippopotamus. These massive animals spend up to sixteen hours a day in water—and somehow, they even sleep completely submerged. So how don’t they drown? Nature built an autopilot. Even while deeply asleep, a hippo’s body activates an automatic reflex every few minutes. Without ...
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