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.
It doesn't say anything about the type of environment they live in. Otters also live in freshwater & like fast flowing streams with lots of vegetation: Their diet is mainly small fish & shell fish. Otters live by eating shells that have food or animals in it and they it it in the water by floating with seaweed on there backs. They survive by staying in groups when they jump into the air they look in front of them if you dont know so they see if there's a shark or something that can eat them and they use there good sense of hearing to protect them.