"Gray whales are bottom feeders. They roll to one side and lower the lip to scour and siphon the bottom for tiny crustaceans, especially amphipods known as ""sand fleas."" They have small, thick, widely-placed baleen plates for screening food from the water. Now found only in the North Pacific, records and bony remains suggest they once lived in waters off the eastern seaboard of the United States and across the Atlantic near England, Sweden, and the Netherlands. Known as long distance travelers, they migrate north along the West Coast for the summer, and south again for the winter, where they calve in the shallows off Baja California. In 1994 the gray whale was removed from the endangered species list. Estimated population size in 1988 was about 21,000 individuals, and growing. Killer whales are the only animals known to attack them."
Links:Mammal Species of the World More images, video and sound
Original description: Lilljeborg 1861. Forh. Skand. Naturf. Ottende Mode, Kopenhagen, 1860, 8:602 .