Can seals live underwater? Detailed answer

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Can seals live underwater? Detailed answer

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Can seals live underwater?

Because we've all seen trained seals at the circus, and because they're so fun to watch at the zoo, we get excited about them. And it is all the more surprising that most people know almost nothing about these animals. Seals include fur seals, sea lions, seals, elephant seals and walruses.

Seals are mammals, and they are an intermediate link between such typical mammals as cows or dogs, and marine mammals, such as whales. Indeed, seals are descended from land mammals that once had to adapt to life in the water. In the water, they did not have to live as long as the whales, as a result of which they did not adapt well to life in the water. Seals cannot live underwater permanently.

In addition, they give birth on land. In most cases, seals have to teach their pups to swim! Therefore, it is obvious that seals are at an intermediate stage between land and marine mammals. As they adapted to life in the water, certain changes occurred to them. So, they developed webbed hind limbs and fins. They also acquired a thick layer of subcutaneous fat, which protected them from hypothermia. The ears decreased in size over time or disappeared altogether in order to reduce water resistance when moving. And they began to eat marine food - octopuses and fish.

Although nature has adapted seals to a large extent for existence in the water, they also have to spend a lot of time on land. They like to bask in the sun or sleep on the shore or on an ice floe. On the ground, they crawl or pull their bodies up with their fins. In the United States, California sea lions are best known. They are mobile and smart. They can be easily taught to juggle a ball on the tip of their nose.

The habits of seals make them easy prey for humans. This is especially true for the season of feeding young animals, when it is very easy to get close to them along the shore or along an ice floe. For centuries, the Eskimos have used seals for food, clothing, oil for cooking, and lighting.

Author: Likum A.

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