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MammalsMammals are a diverse assemblage of animals that are now found all over the earth. They arose first in the fossil record about 200 million years ago but didn’t become abundant until after the age of the dinosaurs around 65 million years ago. Mammals are distinguished by their hair, milk-making
ability and warm-blooded nature. Because mammals have many layers of hair
they are, compared to reptiles and amphibians, more abundant in the northern
habitats such as Canada and Alaska, than in Tropical regions to the south. Carnivores (order Carnivora) Dogs (family Canidae) Coyote
Canis latrans Wolf
Canis lupus Red
Fox Vulpes vulpes Cats (family Felidae) Mountain
Lion Felis concolor Lynx
Lynx lynx Weasels and their Allies (family Mustelidae) Sea
Otter Enhydra lutes Wolverine
Gulo gulo River
Otter Lontra Canadensis American
Marten Martes Americana Fisher
Martes pennanti Ermine/Stoat
Mustela erminea Least
Weasel Mustela nivalis American
Mink Mustela vison Raccoons (family Procyonidae) Raccoon
Procyon lotor Bears (family Ursidae) Black
Bear Ursus americanus Grizzly/Brown
Bear Ursus arctos Rodents (Order Rodentia) Beavers (family Castoridae) American
Beaver Castor Canadensis Meadow
Jumping Mouse Zapus hudonius Western
Jumping Mouse Zapus princeps New World Porcupines
(family Erethizontidae) American
Porcupine Erethizon dorsatum
Rats, Mice, and Voles (family Muridae) Gapper's
Red-Backed Vole Clethrionomys gapperi Northern
Red-Backed Vole Clethrionomys rutilus Brown
Lemming Lemmus sibiricus Bushy-Tailed
Wood Rat Neotoma cinerea Muskrat
Ondatra zibethicus Deer
Mouse Peromyscus maniculatus Heather
Vole Phenacomys intermedius Northern
Bog Lemming Synaptomys borealis Long-Tailed
Vole Microtus longicaudus Singing
Vole Microtus miurus Tundra
Vole Microtus oeconomus Meadow
Vole Microtus pennsylvanicus Townsend's
Vole Microtus townsendii House
Mouse Mus musculus Norway
Rat Rattus norvegicus Squirrels (family Sciuridae) Least
Chipmunk Eutamias minimus Northern
Flying Squirrel Glaucomys sabrinus Hoary
Marmot Marmota caligata Woodchuck
Marmota monax Vancouver
Island Marmot Marmota vancouverensis Arctic
Ground Squirrel Spermophilus parryii American
Red Squirrel Tamiasciurus hudsonicus Cloven-Hooved Mammals Antelopes, Cattles, Sheep, and Goats (family
Bovidae) Mountain
Goat Oreamnos americanus Dall's
Sheep Ovis dalli Deer (family Cervidae) Moose
Alces alces Wapiti
or American Elk Cervus elaphus Mule
Deer Odocoileus hemionus Caribou
or Reindeer Rangifer tarandus Bats Order Chiroptera Smooth-faced Bats (family Vespertilionidae) Silver-Haired
Bat Lasionycteris noctivagans Hoary
Bat Lasiurus cinereus California
Bat Myotis californicus Long-Eared
Bat Myotis evotis Keen's
Bat Myotis keenii Little
Brown Bat Myotis lucifugus Long-Legged
Bat Myotis volans Yuma
Bat Myotis yumanensis Insectivores Order Insectivora Shrews (family Soricidae) Pigmy
Shrew Microsorex hoyi Masked
Shrew Sorex cinereus American
Water Shrew Sorex palustris Vagrant
Shrew Sorex vagrans Pikas, Hares, and Rabbits Rabbits and Hares (family Leporidae) Snowshoe
Hare Lepus americanus\ Pikas (family Ochotonidae)
American Pika Ochotona princeps
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