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: 38650
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: 38651
House on Fire Ruin in Mule Canyon, Utah. Part of the Bears Ears National Monument, House on Fire Ruin is an ancestral Puebloan ruin that appears to burst into flames when reflected sunlight hits the ceiling above the ruin.
Location: Bears Ears National Monument, Utah
Image ID: 39372
Bull elk, antlers bearing velvet, Gibbon Meadow. Elk are the most abundant large mammal found in Yellowstone National Park. More than 30,000 elk from 8 different herds summer in Yellowstone and approximately 15,000 to 22,000 winter in the park. Bulls grow antlers annually from the time they are nearly one year old. When mature, a bulls rack may have 6 to 8 points or tines on each side and weigh more than 30 pounds. The antlers are shed in March or April and begin regrowing in May, when the bony growth is nourished by blood vessels and covered by furry-looking velvet.
Species: Elk, Cervus canadensis
Location: Gibbon Meadows, Yellowstone National Park, Wyoming
Image ID: 13154
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: 17038
Black bear on granite rock. This bear still has its thick, full winter coat, which will be shed soon with the approach of summer.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18750
Black bear walking in a forest. 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: 18751
Black bear cub. Black bear cubs are typically born in January or February, weighing less than one pound at birth. Cubs are weaned between July and September and remain with their mother until the next winter.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18752
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: 18762
Black bear portrait sitting in long grass. This bear still has its thick, full winter coat, which will be shed soon with the approach of summer. Black bears are omnivores and will find several foods to their liking in meadows, including grasses, herbs, fruits, and insects.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18763
Black bear portrait sitting in long grass. This bear still has its thick, full winter coat, which will be shed soon with the approach of summer. Black bears are omnivores and will find several foods to their liking in meadows, including grasses, herbs, fruits, and insects.
Species: American black bear, Ursus americanus
Location: Orr, Minnesota
Image ID: 18764
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: 19166
Juvenile brown bears near Johnson River. Before reaching adulthood and competition for mating, it is common for juvenile brown bears to seek one another for companionship after leaving the security of their mothers.
Species: Brown bear, Ursus arctos
Location: Johnson River, Lake Clark National Park, Alaska
Image ID: 19171
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: 19173