Canadian timber wolf / Northwestern wolf (Canis lupus occidentalis
Canadian timber wolf / Northwestern wolf (Canis lupus occidentalis) pack moving through snow, Wood Buffalo National Park, Alberta, Canada. Taken on location for BBC Frozen Planet, March 2009.
Aerial View, Alaskan Timber Wolf, Alberta, Animal, Animalia, Canada, Canadian Timber Wolf, Canid, Canidae, Canis, Canis Lupus, Carnivora, Carnivore, Catalogue13, Common Wolf, Elevated View, Family, From The Air, Grey Wolf, Group, Group Of Animals, High Angle View, In Line, Large Group, Mackenzie River Wolf, Mackenzie Valley Wolf, Mammal, Mammalia, Movement, Moving, North America, Northern Timber Wolf, Northwestern Wolf, Snow, Strategy, Vertebrate, Walking, Wildlife, Wolf
Coyote (Canis latrans) foraging in deep winter snow disturbed by grazing American bison
Coyote (Canis latrans) foraging in deep winter snow disturbed by grazing American bison (Bison bison) Hayden Valley, Yellowstone National Park, Wyoming, USA. January.
American, American Bison, American Buffalo, American Jackal, Animal, Animalia, Artiodactyla, Bison, Bison Bison, Bovid, Bovidae, Brush Wolf, Canid, Canidae, Canis, Canis Latrans, Carnivora, Carnivore, Catalogue13, Coyote, Even Toed Ungulates, Few, Four, Group, Mammal, Mammalia, Mixed Species, Nature, North America, Prairie Wolf, Ruminant, Ruminantia, Snow, United States Of America, Usa, Vertebrate, Western Usa, Wildlife, Winter, Wyoming, Yellowstone National Park
Dog hair, colored scanning electron micrograph (SEM)
Dog hair, coloured scanning electron micrograph (SEM). The outside of the hair, the cuticle, is covered in overlapping scales of dead cells containing the protein keratin. Found exclusively in mammals, hair is one of the defining characteristic of the mammalian class. Magnification: x100 when printed 10 centimetres wide.