The Bowhea Whale (Balaena mysticetus), also known as Greenland Right Whale or Arctic Whale, is a baleen whale of the right whale family Balaenidae. A stocky dark-coloured whale without a dorsal fin, it can grow to 20 metres (66 ft) in length. Estimated maximum weight of this thick-bodied species is 136 tonnes (152 tons), second only to the Blue Whale, although the Bowhead lags behind several other whales in maximum length. The Bowhead spends all of its life in fertile Arctic waters, unlike other whales that migrate for feeding or reproduction.