Ashley Cooper / Thermometer at the Furnace Creek Visitor Centre in Death Valley. Death Valley is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does no...

Ashley Cooper / The Furnace Creek Visitor Centre in Death Valley. Death Valley is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does not receive any r...

Ashley Cooper / Solar panels at the Furnace Creek Visitor Centre in Death Valley. Death Valley is the lowest, hottest, driest place in the USA, with an average annual rainfall of around 2 inches, some years it does n...

Yva Momatiuk & John Eastcott / Sandstone canyon and creek bed, Grand Staircase-Escalante National Monument, Utah

James Christensen / Pacific Chorus Frog (Pseudacris regilla) female hiding in creek bed, Eagle Cap Wilderness, Oregon

Cyril Ruoso / Hanuman Langur (Semnopithecus entellus) family group in stream bed, Ranakpur Forest, Rajasthan, India

Cyril Ruoso / Hanuman Langur (Semnopithecus entellus) family group in stream bed, Ranakpur Forest, Rajasthan, India

Chien Lee / Waterfall cascading over layered bed of sandstone, Lambir Hills National Park, Malaysia

Chien Lee / Waterfall cascading over layered bed of sandstone, Lambir Hills National Park, Malaysia

Colin Monteath / Moss bed, Cascade Saddle stream flows over edge into Matukituki Valley, Mount Aspiring in distance, Mount Aspiring National Park, New Zealand

Theo Allofs / Drought patterns in dry creek bed in Atacama Desert, Chile

Tim Fitzharris / Patterns in stream bed, Great Sand Dunes National Monument, Colorado