Digestive system of humpback whales stretching like an accordion. They allow whales to open their mandible to 90 degrees to gulp water and prey. They expel saltwater through the baleen plates, leaving behind krill and plankton. The whale's tongue plays a vital role in filter feeding, as it is used to push the water out of its mouth while keeping the prey trapped in its baleen bristles. As humpback whales do not have teeth, their food is swallowed whole and travels down the esophagus into the preliminary stomach (known as the forestomach) to be ground. Baleen whales have a multi-chambered stomach, divided into three distinct
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