Mammal photos

Male elk bugling during the fall rut. Large male elk are known as bulls. Male elk have large antlers which are shed each year. Male elk engage in competitive mating behaviors during the rut, including posturing, antler wrestling and bugling, a loud series of screams which is intended to establish dominance over other males and attract females.
Species: Elk, Cervus canadensis
Location: Madison River, Yellowstone National Park, Wyoming
Image ID: 19700  

Bull elk in sage brush with large rack of antlers during the fall rut (mating season). This bull elk has sparred with other bulls to establish his harem of females with which he hopes to mate.
Species: Elk, Cervus canadensis
Location: Mammoth Hot Springs, Yellowstone National Park, Wyoming
Image ID: 19718  

Sea otters mating. The male holds the female's head or nose with his jaws during copulation. Visible scars are often present on females from this behavior. Sea otters have a polygynous mating system. Many males actively defend territories and will mate with females that inhabit their territory or seek out females in estrus if no territory is established. Males and females typically bond for the duration of estrus, or about 3 days.
Species: Sea otter, Enhydra lutris
Location: Elkhorn Slough National Estuarine Research Reserve, Moss Landing, California
Image ID: 21606  

Serval cat, melanistic variation (all black) with prey, Meru National Park, Kenya.
Species: Serval cat, Leptailurus serval
Location: Meru National Park, Kenya
Image ID: 29689  

African elephant herd, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 29510  

African elephant herd, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 29536  

Maasai Giraffe, Amboseli National Park.
Species: Masai giraffe, Giraffa camelopardalis tippelskirchi
Location: Amboseli National Park, Kenya
Image ID: 29563  

Cheetah, Meru National Park.
Species: Cheetah, Acinonyx jubatus
Location: Meru National Park, Kenya
Image ID: 29618  

Cheetah, Meru National Park.
Species: Cheetah, Acinonyx jubatus
Location: Meru National Park, Kenya
Image ID: 29620  

Cheetah, Meru National Park.
Species: Cheetah, Acinonyx jubatus
Location: Meru National Park, Kenya
Image ID: 29624  

African elephant eating acacia, Meru National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Meru National Park, Kenya
Image ID: 29652  

Hippopotamus, Meru National Park, Kenya.
Species: Hippopotamus, Hippopotamus amphibius
Location: Meru National Park, Kenya
Image ID: 29663  

Lionness and two week old cubs, Maasai Mara National Reserve, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 29794  

Lion in a tree, Maasai Mara National Reserve, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 29870  

Lionness with injury from water buffalo, Maasai Mara National Reserve, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 29915  

Leopard, Olare Orok Conservancy, Kenya.
Species: Leopard, Panthera pardus
Location: Olare Orok Conservancy, Kenya
Image ID: 30036  

Maasai Giraffe, two males in courtship combat, jousting, Olare Orok Conservancy.
Species: Masai giraffe, Giraffa camelopardalis tippelskirchi
Location: Olare Orok Conservancy, Kenya
Image ID: 30069  

African elephant herd, drinking water at a swamp, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 29529  

African elephants below Mount Kilimanjaro, Amboseli National Park, Kenya.
Species: African elephant, Loxodonta africana
Location: Amboseli National Park, Kenya
Image ID: 29603  

Brown bear female sow with spring cubs. These three cubs were born earlier in the spring and will remain with their mother for almost two years, relying on her completely for their survival.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19181  

Young brown bear stands in tall sedge grass to get a better view of other approaching bears.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19212  

Coyote in snow covered field along the Madison River.
Species: Coyote, Canis latrans
Location: Yellowstone National Park, Wyoming
Image ID: 19635  

A sea otter, resting on its back, holding its paw out of the water for warmth. While the sea otter has extremely dense fur on its body, the fur is less dense on its head, arms and paws so it will hold these out of the cold water to conserve body heat.
Species: Sea otter, Enhydra lutris
Location: Elkhorn Slough National Estuarine Research Reserve, Moss Landing, California
Image ID: 21602  

Male Lion of the Marsh Pride, Masai Mara.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39611  

Cheetah in tall grass in the Masai Mara, Acinonyx jubatus, Kenya.
Species: Cheetah, Acinonyx jubatus
Location: Maasai Mara National Reserve, Kenya
Image ID: 39626  

Mating pair of African lions, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39629  

Male Lion with Fresh Kill in Tall Grass, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39633  

Male Lion with Fresh Kill in Tall Grass, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39634  

Lioness and Elephants in Marsh, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39641  
Panorama dimensions: 5760 x 8640

A Pair of Lions in the Marsh Pride, Masai Mara, Kenya.
Species: African lion, Panthera leo
Location: Maasai Mara National Reserve, Kenya
Image ID: 39642  
Panorama dimensions: 5400 x 8640