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Pinnipeds are a diverse group of semiaquatic marine mammals that include three main families: seals (Phocidae), sea lions and fur seals (Otariidae), and walruses (Odobenidae). They first evolved in the Oligocene period around 24 million years ago. Pinnipeds have streamlined bodies adapted for swimming with four flippers. They range in size from small seals of around 1 meter to the massive southern elephant seal. While seals were once thought to have two separate evolutionary lines, they are now considered a

Author

josko jokic

Language

EN