Sleeping Whales

Mohit Sapru Posted On :
1 min, 120 words

Categories: ScubaDiving

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Image©Synchronized Sleepers by Franco Banfi

When Sperm Whales(Physeter macrocephalus) sleep they take a deep breath, dive down about 45-65 feet and lineup levelled perfectly vertical. These massive marine mammals sleep sound and still like this for about 7 percent of their time taking short (6 to 24 minute) rests in pods of 5 or 6 whales. These brief naps might be the only time the whales sleep. Untill 2008 no one knew whales slept vertically until a study documented this behavior.

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