Seals do not dive deep or stay under water long. The maximum is only a couple minutes. However some seals while hunting, can stay under water for as long as thirty minutes and dive as deep as 1,000 feet (305 meters.) They are able to do this without running out of oxygen because scientists believe they have more blood in their body than land animals do which gives them enough oxygen to do this. They swim, breed, and pupp in large groups for protection. Seal's legs were adapted into flippers so they could swim and catch food easier.
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