examples of marine mammals [2]
Marine mammals: many actively hunted species (more than 110 out of 116) are protected or are subject to hunting restrictions.
killer whale 
Widespread swift aggressive marine mammal reaching up to 30 feet in length; it attacks mainly young whales and dolphins.
narwhal 
Mammal of arctic waters; the male, whose spiraled tusk can reach 10 feet in length, is hunted for its ivory.
walrus 
Amphibious marine mammal of arctic regions; it is hunted for its hide, blubber and ivory tusks.
beluga whale 
Marine mammal of the polar and subarctic regions emitting various whistles to communicate, hence its nickname "sea canary".