Toothed whale whales do not have wax ester deposits nor branched fatty chain acids in their blubber. Thus, more recent evolution of these complex blubber traits occurred after baleen whales and toothed whales split, and only in the toothed whale lineage. Toothed whales have torpedo-shaped bodies with inflexible necks, limbs modified into flippers, nonexistent external ear flaps, a large tail fin, and bulbous heads (with the exception of sperm whales). Their skulls have small eye orbits, long beaks (with the exception sperm whales), and eyes placed on the sides of their heads. Toothed whales range in size from the and vaquita to
Types of modern dance 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 preparing it for performances. A typical Horton class starts standing up with roll-downs and flat backs and later moves on to more complex moves. Alvin Ailey was one of Mr. Horton's students. Many companies use Horton including Alvin