Agave americana cactus plant growing in Cabo de Gata natural park, Almeria, Andalusia, Spain, Europe

Plains zebra (Equus quagga), Shompole, Kenya, East Africa, Africa

Chacma baboons (Papio ursinus) drinking, Chobe National Park, Botswana, Africa

Elephant (Loxodonta africana) calf, Mashatu Game Reserve, Botswana, Africa

Ostriches (Struthio camelus), Nxai Pan National Park, Botswana, Africa

White-backed vultures (Gyps africanus), Savuti, Chobe National Park, Botswana, Africa

Copper mines in the former French mining town of Santa Rosalia, Baja California Sur, Mexico, North America

Boulder pile in a valley leading to Dead Wash in Petrified Forest National Park, Arizona, United States of America

African elephants (Loxodonta africana) at waterhole, Nxai Pan National Park, Botswana, Africa

Berber troglodyte structures, Matmata, Tataouine region, southern Tunisia

African elephant (Loxodonta africana) at sunset, Nxai Pan National Park, Botswana, Africa

Ancient Sahira Dam at the Pre-Aksumite settlement of Qohaito (Koloe), Eritrea, Africa

Humberstone Saltpeter Works, UNESCO World Heritage Site, northern Atacama, Chile, South America

Spinifex grass grows in arid ground at King's Canyon, Northern Territory, Australia

Stones, bark and leaves in dirt at King's Canyon, Northern Territory, Australia

Cowgirl riding horse near barrel in rodeo

Horse dragging cowboy by rope in rodeo

Waste being delivered at disposal site, Riederberg, Woergl, Tyrole, Austria

Waste at disposal site Riederberg, Woergl, Tyrole, Austria

Waste and garbage truck at disposal site Riederberg, Woergl, Tyrole, Austria

Waste being delivered at disposal site, Riederberg, Woergl, Tyrole, Austria

Waste and garbage truck at disposal site Riederberg, Woergl, Tyrole, Austria

Old stage coach on mainstreet of Sovereign Hill, Ballarat, Victorian Goldfields, Victoria, AUS

Old stage coach on mainstreet of Sovereign Hill, Ballarat, Victorian Goldfields, Victoria, AUS

Coffins, La Recoleta Cemetery in Buenos Aires, Argentina, South America

Tank Hills course at the US Army Yuma Proving Ground. Testing M1-A1 Abrams tanks on the course, as well as tests for engine components, tank treads, new designs, etc. Also testing performance on the Dust course where they test for performance under dusty conditions.

Plains zebra (Equus quagga) rolls on track on back in Serengeti National Park, Tanzania

Vertical image of a dry mud-caked lake bed with snow-capped mountains in the distance at dawn, Barreal, San Juan, Argentina

A Male Vervet Monkey Sitting On Rocks In A Dusty Patch Of Ground With A Few Tufts Of Grass On It, He Has A Black Face And Paws And Grey And Brown Fur, Nyabushozi, Western Region, Uganda

Agriculture - Closeup of a cowboy