do they sleep?
Yes, sleep in water with half of their brain awake
Pinniped
Scientists have recorded them sleeping for minutes at a time while slowly drifting downward in a belly-up orientation. Like other marine mammals, seals sleep in water with half of their brain awake so that they can detect and escape from predators. When they are asleep on land, both sides of their brain go into sleep mode.
what class of vertebrates do seals belong to Pinnipeds what are pinnipeds? Diverse clade of carnivorous, fin-footed, semiaquatic marine mammals. what is the diet of the the last kind of mammal you mentioned? All cetaceans are carnivorous and predatory what kind of threat do these mammals face? Due to the difficulty to survey populations, 38% of marine mammals are data deficient apart from the seal can you name some other animals that full under this type of mammals? Whales, manatees, sea otters and polar bears how do pinniped move from one place to another? They have two pairs of flippers; the fore-flippers and hind-flippers, and smooth networks of muscle bundles in their skin that may increase laminar flow and make it easier for them to slip through water
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Pinniped [SEP] Sleep
Pinnipeds spend many months at a time at sea, so they must sleep in the water. Scientists have recorded them sleeping for minutes at a time while slowly drifting downward in a belly-up orientation. Like other marine mammals, seals sleep in water with half of their brain awake so that they can detect and escape from predators. When they are asleep on land, both sides of their brain go into sleep mode.