Marine Mammal Protection Act Indian manatee, sea otter, polar bear, and Pacific walrus. Species not present in U.S. waters include the West African and Amazonian manatee, dugong, Atlantic walrus, and marine otter. In efforts to conserve and manage marine mammal species, the Service has appointed field staff dedicated to working with partners to conduct population censuses, assess population health, develop and implement conservation plans, promulgate regulations, and create cooperative relationships internationally. Various Marine Mammal Management offices are located on either coast. The Service's Marine Mammal Management office in Anchorage, Alaska is responsible for the management and conservation of polar bears, Pacific walruses, and northern
Saint Bathans mammal bat and several currently unclassified species, also existed. Saint Bathans mammal The Saint Bathans mammal is a currently unnamed extinct mammal from the Miocene of New Zealand. A member of the Saint Bathans Fauna, it is notable for being a late surviving "archaic" mammal species, neither a placental or marsupial, as well as for providing evidence that terrestrial mammals did in fact once live in Zealandia, in contrast with modern New Zealand, where bats are the only mammals in otherwise bird-dominated terrestrial faunas. The Saint Bathans mammal is currently represented by two specimens, MNZ S.40958 and MNZ S.42214, composed of