Elephant seals enter 'sleep spiral' during deep ocean dives
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Northern elephant seals have adapted to sleep and dive at the same time all while avoiding predators. New research, based on the recorded brainwaves of the seals, revealed the marine mammals get only about two hours of sleep a day while foraging.
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Northern elephant seals have adapted to sleep and dive at the same time all while avoiding predators. New research, based on the recorded brainwaves of the seals, revealed the marine mammals get only about two hours of sleep a day while foraging.
from CNN.com - RSS Channel https://ift.tt/cB3hbVM
via IFTTT
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