Daniel Heuclin / Sand Viper (Cerastes vipera) side winding across sand dunes, near Chingueti, Mauritania

Bruno D'Amicis / Sand viper (Cerastes vipera) side winding on sand dunes. Grand Erg Oriental, Kebili Governorate. Tunisia.

Ann & Steve Toon / African elephant bull flinging dust over his body with his trunk (Loxodonta africana), Chobe National Park, Botswana, Africa.

James Aldred / Sahara horned viper {Cerastes cerastes} side winding up desert sand dune, Morocco 1997

Paul Johnson / Winding road climbing up side of gorge, Cele valley, Dordogne, France

Stefan Christmann / Cameraman Lindsay McCrae filming Emperor penguins (Aptenodytes forsteri) on a stormy day as they are moving around the huddled colony, trying to reach the wind sheltered side, Atka Bay, Antarctica, Ju...