Baleen plates - whale bones used to strain food in a whale's mouth
Blubber - a thick layer of fat beneath a whale's skin
Blubber oil/shalw oil - the oil made from whale fat
Calf - a baby whale
Krill - tiny, shrimp-like creatures
Migrate - to move from one place to another, usually at the same time each year
Ton - (1) a unit of weight equal to 200 pounds in the United States and Canada (2) a unit of weight in Great Britain
Vitamins - a substance needed for healthy growing