Dolphins can’t breathe automatically.

Dolphins can’t breathe automatically.

Due to this limitation, dolphins sleep with their blowholes above the water surface. They also sleep with only 1/2 of their brain at a time, and take turns sleeping with different sides of their brains. 

Half of the brain remains awake so that the dolphin remembers to breathe. As a result, dolphins cannot receive anesthetics or else they’ll stop breathing and whatever medical procedure they were undergoing would go to waste. 

So the next time you’re at Sea World watching a dolphin show, give that guy an extra loud applause because he/she is able to do all the awesome stuff while remembering to breathe, and you probably don’t even remember where you parked your car. 

(Source)

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