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Atlantic Ocean

Three fin whales – also known as finback whales – swimming in the Atlantic. Fin whales are filter-feeders, feeding on small schooling fish, squid, and crustaceans. They are also one of the fastest of cetaceans and can sustain speeds between 37 and 41 km/h (23 to 25 mph) and bursts up to 46 km/h (29 mph) have been recorded, earning the fin whale the nickname “the greyhound of the sea.” Photo courtesy of NOAA Fisheries.