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
Killer whales in popular culture and dolphins. They have been known to attack baleen whale calves, and even adult whales. Killer whales are apex predators, as there is no animal which preys on them. https://www.youtube.com/watch?v=vAaHUg0wSzo "Documentary in 2014". BAFTA.org. British Academy of Film and Television Arts. Retrieved February 27, 2017. Killer whales in popular culture Killer whales have appeared in several movies and many documentaries. Creatures by the name of "orca" or "orc" have appeared throughout the history of Western literature. In Ludovico Ariosto's epic poem "Orlando Furioso", the "orca" (sometimes translated "orc") was a sea-monster from whom the damsel Angelica was rescued by Orlando.