Elephant seals dive asleep – and urchin death riddle solved
Elephant seals drift off to sleep and go into an unconscious spiral during deep dives, a new study by US scientists has discovered.
Source: divernet.com
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Sleeping elephant seals fall through ocean's depths, and some even nap on the sea floor
Researchers have found elephant seals falling asleep at sea and tumbling hundreds of metres deep in uncontrolled spirals.
Source: rnz.co.nz
Elephant seals sleep 1,200 feet under the ocean to avoid predators
A sleeping elephant seal in Antarctica. Sepnem Goskun/Anatolu Agency via Getty Images A new study has found that elephant seals move downward in a "sleep
Source: cbncompass.ca
Elephant seals drift off to sleep while diving far below the ocean surface
A new analysis of elephant seal brainwave patterns has revealed that these mammals take short naps while holding their breath on deep dives, averaging just 2 hours of sleep per day during their long trips at sea. The findings have been published today in the journal Science.
Source: ox.ac.uk
Elephant seals drift off to sleep while divin
For the first time, scientists have recorded brain activity in a free-ranging, wild marine mammal, revealing the sleep habits of elephant seals during the months they spend at sea. The new findings show that while elephant seals may spend 10 hours a day sleeping on the beach during the breeding season, they average just 2 hours of sleep per day when they are at sea on months-long foraging trips. They sleep for about 10 minutes at a time during deep, 30-minute dives, often spiraling downward while fast asleep, and sometimes lying motionless on the seafloor.
Source: eurekalert.org