The humpback whale (Megaptera novaeangliae) was a sentient aquatic cetaceous mammal species indigenous to Earth. An adult usually ranged between twelve and sixteen meters in length, and weighed approximately thirty-six metric tons. This species was well-known for its complex song, which was proven in 2286 to be a full-fledged language. This species became extinct during the 21st century due to overhunting.
Information on, a model of, and a global map showing the range of this species was included in a display of other baleen whales that was seen in the Cetacean Institute in 1986. (Star Trek IV: The Voyage Home)