The bowhead whale (Balaena mysticetus) is a species of the right whale family Balaenidae, in suborder Mysticet

i and genus Balaena. A stocky dark-colored whale without a dorsal fin, it can grow to 20 m (66 ft) in length. This thick-bodied species can weigh 75 tonnes (74 long tons; 83 short tons) to 100 tonnes (98 long tons; 110 short tons). It lives entirely in fertile Arctic and sub-Arctic waters, unlike other whales that migrate to low latitude waters to feed or reproduce. It was also known as the Greenland right whale orArctic whale. American whalemen called it the steeple-top, polar whale, or Russia or Russian whale. The bowhead has the largest mouth of any animal.