Gray whales are very agile swimmers.
Gray whales make grunts, clicks, and whistling sounds which may be used to communicate with other gray whales. This giant cetacean eats small fish, crustaceans, squid, and other tiny organisms that it finds on the sea floor. It sieves its food through its comb-like plates of baleen. They feed in the cold arctic waters and calve and mate in the warm, protected tropical lagoons of the pacific ocean off Mexico.