what is marine mammal
Simple put, a marine mammal is a mammal who lives in a marine or, in some cases, an aquatic environment and obtains all or most of its food there too.So, what is a mammal then? To be classified as a mammal an animal must posses all five of these characteristics. They have lungs and breath air.ll marine mammals were originally land mammals and share common ancestry and characteristics with every other mammal. Over time they became more and more specialized to meet the challenges of life in an aquatic environment.