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The Bottlenose Dolphin sleeps with one eye open and the other closed. They need to be awake to breathe, only half of the dolphin’s brain goes to sleep while the other half remains awake.
Sponsor:
The Bottlenose Dolphin sleeps with one eye open and the other closed. They need to be awake to breathe, only half of the dolphin’s brain goes to sleep while the other half remains awake.
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