Bull moose (Alces alces) calling, Wasatch Mountain State Park, Utah, United States of America, North America

Bighorn sheep (Ovis canadensis) ram during the rut, Arapaho National Forest, Colorado, United States of America, North America

Mule deer (Odocoileus hemionus) buck, Heron Lake State Park, New Mexico, United States of America, North America

African elephant (Loxodonta africana), Kruger National Park, South Africa, Africa

Warthog (Phacochoerus aethiopicus) wallowing, Mkhuze Game Reserve, South Africa, Africa

Nyala (Tragelaphus angasii), female with baby drinking, Mkhuze Game Reserve, South Africa, Africa

Impala (Aepyceros melampus), females at waterhole, Mkhuze Game Reserve, South Africa, Africa

Red deer hind (Cervus elaphus) at dusk, Argyll, Scotland, UK

Domestic goat portrait, Capra hircus, Germany, Bavaria

Domestic goat portrait, Capra hircus, Germany, Bavaria

View taken from behind of silhouettes of two blue wildebeest (Connochaetes taurinus) standing on the savanna watching a cheetah (Acinonyx jubatus) pass by, Serengeti National Park, Tanzania, Africa

Two blue wildebeest (Connochaetes taurinus) jump off sandy cliff while others stand watching on the edge, Serengeti National Park, Tanzania, Africa

Silhouette of two, blue wildebeest (Connochaetes taurinus) crossing horizon at sunset, Serengeti National Park, Tanzania, Africa

Camels with colorful saddles waiting for tourists with the Great Pyramid of Giza in the Distance, Giza, Cairo, Egypt

Two blue wildebeest (Connochaetes taurinus) go down a steep, dirt riverbank gulley while others stand watching on the edge, Serengeti National Park, Tanzania, Africa

Reticulated giraffe (Giraffa reticulata) crossing an earth dam on the horizon against a blue sky, Laikipia, Kenya

Reticulated giraffe (Giraffa reticulata) stands on the savannah browsing an acacia tree near Mount Kenya, Laikipia, Kenya

Pronghorn Antelope (Antilocapra Americana), Grand Teton National Park, Wyoming, United States Of America