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
Greater white-toothed shrew and other small carnivorous mammals such as weasels are the main predators of "C. russula". In order to avoid predation, the greater white-toothed shrews can be found undercover of vegetation or leaf litter when active. Cryptic coloration is also used as an effective method to avoid predation. The greater white-toothed shrews are classified as semi-social mammals. During winter, "C. russula" are found sharing nests and enter torpor. Mated pairs are found guarding their territories together. "C. russula" are highly monogamous and exhibit a female-biased dispersal, which is highly uncommon in mammals. This dispersal pattern can also occur due to infiltration