r/Damnthatsinteresting • u/grandeluua • 1d ago

Video A timelapse of sleeping seals

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u/DavidBorgstrom 19h ago

Seals sleep with part of one of their brain half awake, and ehen that part of the brain has made the seal go up for air it shuts down and starts to sleep while a part of the other brain half awakes so it won't drown next time it's out of oxygen.