- Amended law evenly groups Arctic species - Large marine mammal - Seal's tusked cousin - Tusked marine animal - A very large marine mammal (Trichecus rosmarus) of the Seal
family, native of the Arctic Ocean. The male has long and powerful
tusks descending from the upper jaw. It uses these in procuring food
and in fighting. It is hunted for its oil, ivory, and skin. It feeds
largely on mollusks. Called also morse.