- colossal - extremely large
- blubber - the fat of sea mammals, especially whales and seals
- titanic - of exceptional size
- underbelly - the soft underside or abdomen of an animal
- microorganism - a microscopic organism, especially a bacterium, virus, or fungus.
- massive - exceptionally large
- quantity - the amount or number of a material
- mate - each of a pair of birds or other animals
- pod - a group of animals
- migrate - an animal that moves from one region or habitat to another, especially regularly according to the seasons
- Equator - an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and southern hemispheres and constituting the parallel of latitude 0°
- krill - small crustaceans that serve as food for animals with baleen
- crustaceans - an arthropod of the large, mainly aquatic group Crustacea, such as a crab, lobster, shrimp, or barnacle
- baleen - the hairs in a whale's mouth that act as a filter-feeder
- filter-feeder - (of an aquatic animal) feeding by filtering out plankton or nutrients suspended in the water
- calories - energy
- surface -top
- plankton - small crustaceans that serve as food for animals with baleen