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      • Seals, too, have key adaptations that make them efficient swimmers, like lots of blubber to make them buoyant. When at sea, northern elephant seals spend 85 to 95 percent of that time underwater and make massive migrations up to 13,000 miles long.
      ocean.si.edu/ocean-life/marine-mammals/seals-sea-lions-and-walruses
  1. Swimming. Harbor seals swim with all four flippers: they move their hind flippers from side to side to propel themselves forward, and use their foreflippers to help them steer. Harbor seals can swim forward and upside-down. They rarely swim backward.

  2. May 7, 2021 · Despite living in the same environment and doing largely the same things, seals have evolved two distinct ways to swim. One group of seals chiefly use their feet to propel them through the water, while the other uses their flippers to swim.

  3. May 7, 2021 · Seals and sea lions propel themselves through the water to catch their prey – but true seals (otariids) generally use their front flippers while eared seals (phocids) use their back feet, and...

  4. Sep 26, 2024 · Seals cannot swim as fast as dolphins or whales but are more agile in the water. When swimming, a true seal uses its forelimbs to maneuver in the water, propelling its body forward with side-to-side strokes of its hind limbs.

    • The Editors of Encyclopaedia Britannica
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  5. Seals, too, have key adaptations that make them efficient swimmers, like lots of blubber to make them buoyant. When at sea, northern elephant seals spend 85 to 95 percent of that time underwater and make massive migrations up to 13,000 miles long.

  6. Feb 9, 2023 · All the seal’s senses are adapted for life underwater. Their comparatively large eyes can see just as well in water as they can in the air. Ice seals have had to further adapt their eyes to cope with the high levels of ultraviolet radiation common in snowbound environments.

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  8. Nov 20, 2022 · Seals can stay underwater for a long time, up to an hour or more. They have a high level of myoglobin, which is an oxygen-binding protein, in their muscles. This allows them to store oxygen and use it for extended periods of time.

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