What is a marine mammal?
Marine means ‘of the sea’. So, a marine mammal is one that lives in the sea. They have some things in common with the mammals that live on land. They have lungs and breathe air. They give birth to young ones, and nurse them with milk. Scientists believe that the ancestors of the marine mammals that we see today lived on land.
Their bodies adapted to live in the sea over the ages. Marine mammals vary in appearance and ways in which they live. Some like whales and dolphins cannot survive on land and live all the time in water. Seals, sea lions and walruses live both on land and sea. They are called pinnipeds and come ashore to rest and to raise their young ones.
More reference : Click Here
Tuesday, February 12, 2008
What is a marine mammal?
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment