Douglas Denys:
Bison in Lamar Valley, Yellowstone
Douglas Denys:
Old man bison, Hayden Valley of Yellowstone
Douglas Denys:
Yellowstone Bison: mother's comfort
Douglas Denys:
Lone wolf, Yellowstone
Douglas Denys:
Ram, Dall Sheep
Douglas Denys:
Dall's Sheep
Douglas Denys:
Rocky Mountain Bighorn Sheep Lamb
Douglas Denys:
Big Horn Sheep Ram
Douglas Denys:
Rocky Mountain Big horned Sheep
Douglas Denys:
Musk Ox
Douglas Denys:
Mountain Goats
Douglas Denys:
Mountain Goat
Douglas Denys:
Thompson's Gazelle
Douglas Denys:
Grant's Gazelle
Douglas Denys:
Cape Buffalo
Douglas Denys:
Cape Buffalo
Douglas Denys:
Cape Buffalo
Douglas Denys:
Cape Buffalo
Douglas Denys:
Cape buffalo
Douglas Denys:
Impala
Douglas Denys:
Beisa Oryx
Douglas Denys:
Waterbuck
Douglas Denys:
Gunther's DIk Dik
Douglas Denys:
Wildebeest crossing Mara River
Douglas Denys:
Serengeti-Mara: an unsure future
Douglas Denys:
Grant's gazelle
Douglas Denys:
Garenuk antelope
Douglas Denys:
Garenuk Antelope, Northern Kenya
Douglas Denys:
Grant's gazelle
Douglas Denys:
Thompson's Gazelle
