close up portrait big bull bison standing

sun face close up side portrait adult bisons

close up portrait bull bison laying down looking

face close up side view portrait male bisons

selective focus close up rear view bull elk away

sun close up side portrait adult bison early

close up front view portrait mature male bison

Northern (Steller) sea lion (Eumetopias jubatus) colony on sail rock in Frederick Sound, southeastern Alaska. Here young bulls are mock-fighting in the non-breeding season to prepare their fighting skills for adulthood. This is the second largest of all p

Northern (Steller) sea lion (Eumetopias jubatus) colony on sail rock in Frederick Sound, southeastern Alaska. This is the second largest of all pinnipeds in North America, with males reaching a length of over 10 feet and 2, 000 pounds while the females are

A young northern (Steller) sea lion (Eumetopias jubatus) from a colony on sail rock in Frederick Sound, southeastern Alaska. This is the second largest of all pinnipeds in North America, with males reaching a length of over 10 feet and 2, 000 pounds while

Adult bull southern elephant seal (Mirounga leonina) on the beach on Torgesen Island just outside Palmer Station in Port Arthur, Antarctica. This species is the largest pinniped in the world, with males attaining lengths of 6. 5 m and a weight of 3, 700 kg.

Young southern elephant seal (Mirounga leonina) on the beach on Petermann Island, Antarctica. This species is the largest pinniped in the world, with males attaining lengths of 6. 5 m and a weight of 3, 700 kg. A remarkable diver, recorded to depths of 1444

Two young children with a large chocolate bar

Sectional view of large intestine.

Male skeleton with internal organs on blue background.

Two pencils with human features talking about money issues

Medical ilustration of an appendix with appendicitis.

Anatomy of human digestive system.

Diverticulitis in the descending colon region of the human intestine.

Illustration of diverticulosis in the colon.

close up large dominant male bison scenting