Posterior Cerebral Artery. Long shunned by Neuroangio for no fault of its own, the PCA is now getting the attention it richly deserves. The PCA is an old vessel, in fact emerging in the lower species prior to development of the MCA.
River Otters are mammals that are relatives of the stoats, weasels, mink, badgers and wolverines. These groups of mammals are known as Mustelids. The Mustelids all have one thing in common, they all have scent glands that they use to mark off their territory. In the wild they live less than 10 years; in captivity they live 10 - 15 years. Range/Habitat: River otters are found along rivers, streams, and lakes and also in estuaries, coastal bogs, and large marine waterways such as Puget Sound and the Strait of Juan de Fuca.
North American river otters live in a variety of habitats, but they spend most of their time in or near streams, rivers, lakes and marshes. They often build a den or a burrow in their home territory.They will if necessary, however, travel great distances over land and through water to find food.nlike other species of otter (notably the well-known sea otter), North American river otters and other webbed-footed otters catch prey with their mouths versus their feet. Although otters are quick swimmers, their skill is shown better in their ability to maneuver rapidly, which helps them chase down their prey.