Tree Root and Rock, Murchison Falls National Park, Uganda, August 10, 1970

Kopjes Rocks and Trees, Kidepo Valley Park, Uganda, August 13, 1970

Tree and Storm Cloud, Kidepo Valley Park, Uganda, August 13, 1970

Storm Over Mountain, Kidepo Valley Park, Uganda, August 12, 1970

Borassas Palms, Kidepo Valley Park, Uganda, August 12, 1970

Topi Carcass, Queen Elizabeth National Park, Ishasha, Uganda, August 3, 1970

Chinstrap Penguins, Couverville Island, First Trip, Antarctica, January 1975

Adélie Penguins, Torgerson Island, Antarctica, January 1976

Crabeater Seal, Palmer Station, Antarctica, February 1976

Flamingos Nests on Crust of Lake Natron, Tanzania, October 15, 1970

Flamingos Nests on Crust of Lake Natron, Tanzania, October 15, 1970

Flamingos, Lake Nakuru, Kenya, Africa, 1970

Crust on Lake Natron from the Air, Tanzania, October 7, 1970

Estuary on Shore of Lake Natron from the Air, Tanzania, Africa, October 15, 1970

Crabeater Seal, Palmer Station, Antarctica, February 1976

Slopes of Ol Doinyo Lengai from the Air, Tanzania, October 7, 1970

Two Lionesses Walking Away, Serengeti, Tanzania, 1970

Hero Underway, Using Both Sail and Motor Power, 1974-1975

Lilienthal Child

Sun Coming In or La-Roo-chuk-A-Rar-Oo