Toothed whale porpoise as a fish. Toothed whales, as well as baleen whales, are descendants of land-dwelling mammals of the artiodactyl order (even-toed ungulates). They are closely related to the hippopotamus, sharing a common ancestor that lived around 54 million years ago (mya). The primitive cetaceans, or archaeocetes, first took to the sea approximately 49 mya and became fully aquatic by 5–10 million years later. The adaptation of echolocation and enhanced fat synthesis in blubber occurred when toothed whales split apart from baleen whales, and distinguishes modern toothed whales from fully aquatic archaeocetes. This happened around 34 mya. Unlike toothed whales, baleen
Types of modern dance own company. He choreographed at least one dance per year. He served on the board at the Juilliard School, one of the most competitive dance schools in the country. He won many awards including two "Dance Magazine" awards. Types of modern dance Modern dance is an evolution of choreography and performance that came after ballet. It can be divided into multiple types. This style was founded by dancer Lester Horton, who was born in 1906. Horton studied Native American dance in Indiana. Horton choreographed for theater and film. Horton studied the human body, and developed exercises focused on strengthening and