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Dolphins Sleep with One Eye Open !

posted by Di-G on

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★ Dolphins sleep with one eye open !

★ During the sleeping cycle, one brain hemisphere remains active, while the other hemisphere shuts down.

★ The active hemisphere handles surfacing and breathing behaviour. 

★ The daily sleeping cycle lasts for about 8 hours(1/3 per day). 

★ During the sleeping cycle, they remain near the surface, swimming slowly or "logging", and occasionally closing one eye.

★ When left hemisphere is active, right eye is open and when right hemisphere is active, left eye is open as hemispheres control opposite organs.

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