Vincent Grafhorst / Thunder storm with lightning bolts at sunset over Kalahari, Khutse Game Reserve, Botswana

Kristel Richard / A bronc (unbroken) Quarter mare bolts after having thrown out a traditionally dressed cowboy, during the rodeo of the Festival de la Doma y el Folclore, Estancia Tacuaty, Misiones, Paraguay. Sequence...

Vincent Grafhorst / Thunder storm with lightning bolts over Kalahari, Khutse Game Reserve, Botswana

Vincent Grafhorst / Thunder storm with lightning bolts over Kalahari, Khutse Game Reserve, Botswana

Juan Manuel Borrero / Detail on a door in the Pyrenees mountains. Catalonia, Lerida, Spain

Mark Moffett / Jumping Spider (Ptocacius sp) in night- time leaf shelter secured with bolts of silk, Singapore