A Close-up of One of the Many Chimpanzees That were Studied by Researcher Jane Goodall

A Close-up of One of the Many Chimpanzees Studied by Jane Goodall at Gombe Stream National Park

Two of the Many Chimpanzees Studied by Jane Goodall at Gombe Stream National Park

Two Chimpanzees Groom Each Other in Gombe Stream National Park

A Close-up of One of the Many Chimpanzees at Gombe Stream National Park

Two of the Many Chimpanzees at Gombe Stream National Park in Tanzania

One of the Many Chimpanzees Studied by Jane Goodall at Gombe Stream National Park

A Male African Lion Rests on a Grassy Plain in Serengeti National Park

A Camouflaged Cheetah Sits Alone in a Field of Tall Grass in Serengeti National Park

A Close View of a Male African Lion Holding the Remains of His Last Victim in His Paws

Silhouetted Acacia Trees at Sunset

Cormorant Chick at a Colony Along Lake Michigan