Natural History Photography

Alaskan brown bear catching a jumping salmon, Brooks Falls, Ursus arctos, Brooks River, Katmai National Park

Alaskan brown bear catching a jumping salmon, Brooks Falls.
Species: Brown bear, Ursus arctos
Location: Brooks River, Katmai National Park, Alaska
Image ID: 17031

A large, old brown bear (grizzly bear) wades across Brooks River. Coastal and near-coastal brown bears in Alaska can live to 25 years of age, weigh up to 1400 lbs and stand over 9 feet tall.
Species: Brown bear, Ursus arctos
Location: Brooks River, Katmai National Park, Alaska
Image ID: 17039

Full grown, mature male coastal brown bear boar (grizzly bear) in sedge grass meadows, Ursus arctos, Lake Clark National Park, Alaska

Full grown, mature male coastal brown bear boar (grizzly bear) in sedge grass meadows.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19134

Portrait of a young brown bear, pausing while grazing in tall sedge grass. Brown bears can consume 30 lbs of sedge grass daily, waiting weeks until spawning salmon fill the rivers.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19135

Huge California Sea Lion Male Underwater, a bull, patrolling his breeding harem and territory, Coronado Islands, Mexico. His sagittal crest, the bony bump on his head that distinguishes adult male sea lions, is clearly seen. This particular sea lion bears an orange tag on his left foreflipper, probably as a result of rescue and release as a young sea lion years earlier.
Species: California sea lion, Zalophus californianus
Location: Coronado Islands (Islas Coronado), Baja California, Mexico
Image ID: 38655

Location: Joshua Tree National Park, California
Image ID: 28426

Black bear walking in a grassy meadow. Black bears can live 25 years or more, and range in color from deepest black to chocolate and cinnamon brown. Adult males typically weigh up to 600 pounds. Adult females weight up to 400 pounds and reach sexual maturity at 3 or 4 years of age. Adults stand about 3' tall at the shoulder.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18744

Two mature brown bears fight to establish hierarchy and fishing rights, Ursus arctos, Brooks River, Katmai National Park, Alaska

Two mature brown bears fight to establish hierarchy and fishing rights.
Species: Brown bear, Ursus arctos
Location: Brooks River, Katmai National Park, Alaska
Image ID: 17036

Brown bear waits for salmon at Brooks Falls. Blurring of the water is caused by a long shutter speed. Brooks River, Ursus arctos, Katmai National Park, Alaska

Brown bear waits for salmon at Brooks Falls. Blurring of the water is caused by a long shutter speed. Brooks River.
Species: Brown bear, Ursus arctos
Location: Brooks River, Katmai National Park, Alaska
Image ID: 17047

Black bear in a tree. Black bears are expert tree climbers and will ascend trees if they sense danger or the approach of larger bears, to seek a place to rest, or to get a view of their surroundings.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18745

Black bear cub in a tree. Mother bears will often send their cubs up into the safety of a tree if larger bears (who might seek to injure the cubs) are nearby. Black bears have sharp claws and, in spite of their size, are expert tree climbers.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18746

Brown bear walks on tide flats. Grizzly bear, Ursus arctos, Lake Clark National Park, Alaska

Brown bear walks on tide flats. Grizzly bear.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19136

Juvenile female coastal brown bear (grizzly bear) grazes on sedge grass, Ursus arctos, Lake Clark National Park, Alaska

Juvenile female coastal brown bear (grizzly bear) grazes on sedge grass.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19137

Coastal brown bear in meadow. The tall sedge grasses in this coastal meadow are a food source for brown bears, who may eat 30 lbs of it each day during summer while waiting for their preferred food, salmon, to arrive in the nearby rivers.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19138

A brown bear mother (sow) stands in tall sedge grass to look for other approaching bears that may be a threat to her cubs, Ursus arctos, Lake Clark National Park, Alaska

A brown bear mother (sow) stands in tall sedge grass to look for other approaching bears that may be a threat to her cubs.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19139

Coastal brown bear forages for razor clams in sand flats at extreme low tide. Grizzly bear, Ursus arctos, Lake Clark National Park, Alaska

Coastal brown bear forages for razor clams in sand flats at extreme low tide. Grizzly bear.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19140

Juvenile female brown bear forages for razor clams in sand flats at extreme low tide. Grizzly bear, Ursus arctos, Lake Clark National Park, Alaska

Juvenile female brown bear forages for razor clams in sand flats at extreme low tide. Grizzly bear.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19141

Coastal brown bear on sand flats at low tide, Ursus arctos, Lake Clark National Park, Alaska

Coastal brown bear on sand flats at low tide.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19142

Young brown bear stands in tall sedge grass to get a better view of other approaching bears, Ursus arctos, Lake Clark National Park, Alaska

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: 19143

Coastal brown bear walking on sand beach, Ursus arctos, Lake Clark National Park, Alaska

Coastal brown bear walking on sand beach.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19144

Coastal brown bear walks in Silver Salmon Creek, Ursus arctos, Lake Clark National Park, Alaska

Coastal brown bear walks in Silver Salmon Creek.
Species: Brown bear, Ursus arctos
Location: Silver Salmon Creek, Lake Clark National Park, Alaska
Image ID: 19146

Young brown bear grazes in tall sedge grass. Brown bears can consume 30 lbs of sedge grass daily, waiting weeks until spawning salmon fill the rivers.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19147

Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice, Ursus arctos, Lake Clark National Park, Alaska

Brown bears fighting or sparring. These are likely young but sexually mature males that are simply mock fighting for practice.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19148

Mature male coastal brown bear boar waits on the tide flats at the mouth of Silver Salmon Creek for salmon to arrive. Grizzly bear, Ursus arctos, Lake Clark National Park, Alaska

Mature male coastal brown bear boar waits on the tide flats at the mouth of Silver Salmon Creek for salmon to arrive. Grizzly bear.
Species: Brown bear, Ursus arctos
Location: Lake Clark National Park, Alaska
Image ID: 19149

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