Jack Dykinga / Lightning storm with rainbow over Saguaro cactus (Carnegiea gigantea) near Redrock, Arizona State Trust, Sonoran Desert, Arizona. September 2015. Long exposure with lightning trigger.

SCOTLAND: The Big Picture / Pine marten (Martes martes) on top of a car wheel, Ardnamurchan Peninsula, Lochaber, Scotland, UK, June.

Franco Banfi / Great white shark (Carcharodon carcharias) Guadalupe Island, Mexico, Pacific Ocean. Vulnerable.

Ben Hall / Marine iguana (Amblyrhynchus cristatus) on rock taken with slow shutter speed to show motion in the water, Galapagos islands, May.

Suzi Eszterhas / Hyacinth macaw (Anadorhynchus hyacinthinus) eating palm nut. Pantanal, Brazil.

Charlie Summers / Rocky mountain bighorn (Ovis canadensis) ram jumping a barbed wire fence, Montana, USA,

Krista Schlyer / Seven-spotted lady beetle (Coccinella septempunctata) inside the funnel leaf of Pitcher plant, Alabama, USA. May 2014.

Krista Schlyer / Green lynx spider (Peucetia viridans) on Yellow pitcher plant (Sarracenia flava) Green Swamp, North Carolina, USA. September.

Denis-Huot / Bushfires in dry season on the Isuria escarpment, Masai-Mara Game Reserve, Kenya. October 2007.

Denis-Huot / Two African lionesses (Panthera leo) hunting a herd of zebra near a water hole during the dry season, Masai-Mara Game Reserve, Kenya. February.

Olga Kamenskaya / Wide angle view of vehicle parked on ice on lake surface. Lake Baikal, Siberia, Russia, March 2007.

Olga Kamenskaya / Vehicles parked on ice on the surface of Lake Baikal, Siberia, Russia, March 2008.