Mammals (183 images)
An image gallery of the class of warm-blooded vertebrate animals called mammals.
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![Rocky Mountain Elk [Cervus elaphus] bull territorial display during mating season (rut); Grand Teton NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000yGcNA6fZWgk/t/150/I0000yGcNA6fZWgk.jpg)
Rocky Mountain Elk [C...jpg
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![Rocky Mountain Elk [Cervus elaphus] bull approaching receptive cow during mating season (rut); Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000TlYyLUNRpqE/t/150/I0000TlYyLUNRpqE.jpg)
Rocky Mountain Elk [C...jpg
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![Rocky Mt. Bighorn sheep [Ovis canadensis]; Rams competing for ewe during rut, Bighorn Sheep Canyon, Fremont County, CO](http://cdn.c.photoshelter.com/img-get/I0000FHShtQw2aZc/t/150/I0000FHShtQw2aZc.jpg)
Rocky Mountain Bighor...jpg
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![Rocky Mt. Bighorn sheep [Ovis canadensis]; Rams competing for ewe during rut, Bighorn Sheep Canyon, Fremont County, CO](http://cdn.c.photoshelter.com/img-get/I00006o9SaiG4yhI/t/150/I00006o9SaiG4yhI.jpg)
Rocky Mountain Bighor...jpg
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![Rocky Mt. Bighorn sheep [Ovis canadensis]; Rams challenge one another during rut, Bighorn Sheep Canyon, Fremont County, CO](http://cdn.c.photoshelter.com/img-get/I0000evtQokglYYI/t/150/I0000evtQokglYYI.jpg)
Rocky Mountain Bighor...jpg
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![Rocky Mt. Bighorn sheep [Ovis canadensis]; two rams, Bighorn Sheep Canyon, Fremont County, CO](http://cdn.c.photoshelter.com/img-get/I0000EdgyRLsOzQU/t/150/I0000EdgyRLsOzQU.jpg)
Rocky Mountain Bighor...jpg
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![Rocky Mountain Bighorn Sheep [Ovis canadensis] rams sparring during rutting season; Bighorn Sheep Canyon, Arkansas River Valley, Colorado](http://cdn.c.photoshelter.com/img-get/I0000upFoT0wcQKM/t/150/I0000upFoT0wcQKM.jpg)
Rocky Mountain Bighor...jpg
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![Rocky Mt. Bighorn sheep [Ovis canadensis]; young ram feeding, Bighorn Sheep Canyon, Fremont County, CO](http://cdn.c.photoshelter.com/img-get/I0000fp7qZFb1.sQ/t/150/I0000fp7qZFb1.sQ.jpg)
Rocky Mountain Bighor...jpg
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![Red Fox [Vulpes vulpes] kit & adult female; den site in city park, Jackson, Wyoming](http://cdn.c.photoshelter.com/img-get/I0000FjqkYmgKqMs/t/150/I0000FjqkYmgKqMs.jpg)
Red Fox [Vulpes vulpe...jpg
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![Red Fox [Vulpes vulpes] kit stimulating adult female for a meal; den site in city park, Jackson, Wyoming](http://cdn.c.photoshelter.com/img-get/I0000Qwd76PQ.BhU/t/150/I0000Qwd76PQ.BhU.jpg)
Red Fox [Vulpes vulpe...jpg
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![Pronghorn Antelope [Antilocapra americana] doe; Yellowstone NP., WY](http://cdn.c.photoshelter.com/img-get/I0000zhVyPpnIo9A/t/150/I0000zhVyPpnIo9A.jpg)
Pronghorn Antelope_Mm...jpg
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![Pronghorn Antelope [Antilocapra americana] adult to protect hidden fawn, chases 2 coyotes out of her territory; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000zK0H_E2u4gM/t/150/I0000zK0H_E2u4gM.jpg)
Pronghorn Antelope [A...jpg
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![Pronghorn Antelope [Antilocapra americana] adult to protect hidden fawn, chases 2 coyotes out of her territory; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000f0vJwG3vcGw/t/150/I0000f0vJwG3vcGw.jpg)
Pronghorn Antelope [A...jpg
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![Pronghorn Antelope [Antilocapra americana] doe with twin fawns; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00008ju5NdrUoKM/t/150/I00008ju5NdrUoKM.jpg)
Pronghorn Antelope [A...jpg
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![Pronghorn Antelope [Antilocapra americana] bucks chasing each other in mock challenges; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000Cp7MFJ6dTfU/t/150/I0000Cp7MFJ6dTfU.jpg)
Pronghorn Antelope [A...jpg
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![Pronghorn Antelope [Antilocapra americana] bucks challenge training; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00002lUb0sAqt8M/t/150/I00002lUb0sAqt8M.jpg)
Pronghorn Antelope [A...jpg
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![Pronghorn [Antilocapra americana] antelope twin fawn, hiding; Yellowstone NP. WY](http://cdn.c.photoshelter.com/img-get/I0000Tz4f83Nicok/t/150/I0000Tz4f83Nicok.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] antelope buck, resting; Yellowstone NP. WY](http://cdn.c.photoshelter.com/img-get/I0000aAMEtltOQAQ/t/150/I0000aAMEtltOQAQ.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] antelope doe cleaning new twin fawns; Yellowstone NP. WY](http://cdn.c.photoshelter.com/img-get/I00009HDrDVQgLeY/t/150/I00009HDrDVQgLeY.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] antelope doe nursing new twin fawns ; Yellowstone NP. WY](http://cdn.c.photoshelter.com/img-get/I0000DitRyn9x3XM/t/150/I0000DitRyn9x3XM.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] antelope doe with new twin fawns ; Yellowstone NP. WY](http://cdn.c.photoshelter.com/img-get/I0000UlsVv53S18M/t/150/I0000UlsVv53S18M.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] antelope doe & new fawn; Yellowstone NP., WY](http://cdn.c.photoshelter.com/img-get/I0000OtJlhPaed84/t/150/I0000OtJlhPaed84.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] buck; Yellowstone NP., WY](http://cdn.c.photoshelter.com/img-get/I0000iXcH413rbrQ/t/150/I0000iXcH413rbrQ.jpg)
Pronghorn [Antilocapr...jpg
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![Pronghorn [Antilocapra americana] buck; Yellowstone NP., WY](http://cdn.c.photoshelter.com/img-get/I0000R_FIrDhDMp0/t/150/I0000R_FIrDhDMp0.jpg)
Pronghorn [Antilocapr...jpg
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![Mule Deer buck [Odocoileus hemionus]; Gunnison, CO](http://cdn.c.photoshelter.com/img-get/I0000PCjfCOvJO3s/t/150/I0000PCjfCOvJO3s.jpg)
Mule Deer buck [Odoco...jpg
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![Mule Deer [Odocoileus hemionus] during rut; Fremont County, Colorado](http://cdn.c.photoshelter.com/img-get/I0000X_T2F.3_I60/t/150/I0000X_T2F.3_I60.jpg)
Mule Deer [Odocoileus...jpg
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![Mule Deer [Odocoileus hemionus] during rut; Fremont County, Colorado](http://cdn.c.photoshelter.com/img-get/I0000RavNGodqIyc/t/150/I0000RavNGodqIyc.jpg)
Mule Deer [Odocoileus...jpg
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![Mule Deer [Odocoileus hemionus] buck; feeding; Grand Teton NP., WY](http://cdn.c.photoshelter.com/img-get/I0000kdQt16P6a5o/t/150/I0000kdQt16P6a5o.jpg)
Mule Deer [Odocoileus...jpg
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![Mule Deer [Odocoileus hemionus] buck; feeding; Grand Teton NP., WY](http://cdn.c.photoshelter.com/img-get/I0000Vwvavz_Fyqo/t/150/I0000Vwvavz_Fyqo.jpg)
Mule Deer [Odocoileus...jpg
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![Mule Deer [Odocoileus hemionus] buck; feeding; Grand Teton NP., WY](http://cdn.c.photoshelter.com/img-get/I0000QlOXQla5YX8/t/150/I0000QlOXQla5YX8.jpg)
Mule Deer [Odocoileus...jpg
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![Moose [Alces alces] cow & calf, grazing; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00007HolitcLG8g/t/150/I00007HolitcLG8g.jpg)
Moose [Alces alces]_M...jpg
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![Moose [Alces alces] cow grazing with calf; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000rnnft3C_msg/t/150/I0000rnnft3C_msg.jpg)
Moose [Alces alces]_M...jpg
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![Moose [Alces alces] grazing cow with calf; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000zGHCkNRsGoI/t/150/I0000zGHCkNRsGoI.jpg)
Moose [Alces alces]_M...jpg
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![Grizzly Bear [Ursus arctos] sow foraging with twin cubs close behiind, one cub climibing snag; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000vh0gVNV9rcs/t/150/I0000vh0gVNV9rcs.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow foraging with cub close behind; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000F5UlIZHdoTE/t/150/I0000F5UlIZHdoTE.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow foraging; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000CnE3VW7poQA/t/150/I0000CnE3VW7poQA.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow crossing log with a watchful cub sitting on log;Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000_A.trxxh3bs/t/150/I0000_A.trxxh3bs.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow forages as cub stays close; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00000dR47nQfFjA/t/150/I00000dR47nQfFjA.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow with cubs nearby, foraging; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00004zmvPIFulYk/t/150/I00004zmvPIFulYk.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow with cubs nearby, foraging; Indian Pond, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I00008D.IvdPNIjA/t/150/I00008D.IvdPNIjA.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] sow foraging; Sylvan Pass, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000oIgMEOfuncM/t/150/I0000oIgMEOfuncM.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] cubs playing; Dunraven Pass, Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000PypmnORnNio/t/150/I0000PypmnORnNio.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] ; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000ZxAc2AUi1KM/t/150/I0000ZxAc2AUi1KM.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] ; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000IYuh6OgoGtA/t/150/I0000IYuh6OgoGtA.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] ; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000Y1MOOwQdXYg/t/150/I0000Y1MOOwQdXYg.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] spyhopping; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000k5YBO1gkCQ8/t/150/I0000k5YBO1gkCQ8.jpg)
Grizzly Bear [Ursus a...jpg
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![Grizzly Bear [Ursus arctos] watchful while foraging; Yellowstone NP., Wyoming](http://cdn.c.photoshelter.com/img-get/I0000VUagX_kQQvI/t/150/I0000VUagX_kQQvI.jpg)
Grizzly Bear [Ursus a...jpg
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![Gray Fox [Urocyon cinereoargenteus] male in winter coat, foraging; .Fremont County, Colorado](http://cdn.c.photoshelter.com/img-get/I00005z903VqbTyQ/t/150/I00005z903VqbTyQ.jpg)
Gray Fox [Urocyon cin...jpg
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![Elk [Cervus elaphus] bull bugling, early morning, Yellowstone NP, Wyoming](http://cdn.c.photoshelter.com/img-get/I0000shk5YgcW2ms/t/150/I0000shk5YgcW2ms.jpg)
Elk [Cervus elaphus]_...jpg
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![Elk [Cervus elaphus] bull bugling, early morning, Yellowstone NP, Wyoming](http://cdn.c.photoshelter.com/img-get/I0000mbFCEY6DqZk/t/150/I0000mbFCEY6DqZk.jpg)
Elk [Cervus elaphus]_...jpg