Definition
The grey whale is a baleen whale known for its long migration between feeding grounds in the Arctic and breeding lagoons in Baja California. They are medium-sized, with mottled gray skin and no dorsal fin, instead having a series of knuckles. Grey whales feed by sifting through sediment on the ocean floor, making them 'bottom feeders'. Think of them as the road trip champions of the sea, covering thousands of miles each year. Unlike sleek dolphins, gray whales are more rugged, showing scars from their journey.