Whale Monodontidae (belugas and narwhals), Physeteridae (the sperm whale), Kogiidae (the dwarf and pygmy sperm whale), and Ziphiidae (the beaked whales). Whales are creatures of the open ocean; they feed, mate, give birth, suckle and raise their young at sea. So extreme is their adaptation to life underwater that they are unable to survive on land. Whales range in size from the and dwarf sperm whale to the and blue whale, which is the largest creature that has ever lived. The sperm whale is the largest toothed predator on earth. Several species exhibit sexual dimorphism, in that the females are larger
Giglioli's Whale year. In 1983 between Corsica and the French mainland, French zoologist Jacques Maigret sighted a similar looking creature. Although it has not been proven to exist, it was given a "classification" by Giglioli. However, scientists would most likely classify the whale under Balaenopteridae, large baleen whales. The whale may have been a genetic mutation, similar to humans born with polydactyly. Giglioli's Whale Giglioli's Whale ("Amphiptera pacifica") is a purported species of whale observed by Enrico Hillyer Giglioli. It is described as having two dorsal fins. The species is not recognized by the general scientific community. On September 4, 1867 on