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
Toothed leaf chameleon Toothed leaf chameleon The toothed leaf chameleon, Brookesia dentata, is a species of chameleons endemic to northwestern Madagascar. It was first described by Mocquard in 1900: 345, and has been described numerous times since then, most recently by Townsend "et al." in 2009. It is affected by the collection of charcoal, forest fires, and the grazing of cattle. The toothed leaf chameleon is endemic to northwestern Madagascar, and its type locality is Sberbieville. It has been confirmed to be found at Andasibe, Mandraka, and Angavo-Anjozorobe. At the highest, the species can be found at above sea level. The International Union