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.

Jack Dykinga / Saguaro cacti (Carnegia gigantea) at sunset, during a summer rain storm. Saguaro National Park, Sonoran Desert, Arizona, USA, August. Digital composite.

Guy Edwardes / Portland Bill Lighthouse, Isle of Portland, Dorset, England, UK. November 2015.

Andrew Peacock / White Rhinoceros (Ceratotherium simum) mother and calf in grassland, Ol Pejeta Conservancy, Kenya

Paul Williams / Lightning storm, Western Australia. December 2013. Image stacking / composite composed of three consecutive images.

Five Films / Timelapse of a lightning storm at night, Murchison Falls National Park, Uganda, April 2014.

Five Films / Timelapse of a lightning storm at night, Murchison Falls National Park, Uganda, April 2014.

Ingo Arndt / Olive ridley sea turtles (Lepidochelys olivacea) females coming ashore during an arribada (mass nesting event) to lay eggs, Pacific Coast, Ostional, Costa Rica.

Ingo Arndt / Floodplain with Pandanus palms under storm clouds, Kakadu National Park, Northern Territory, Australia, December 2010

Ingo Arndt / View from Margaret Knoll lookout of sunset and rain clouds over the Indian Ocean and the east coast of Christmas Island, Indian Ocean, Australian Territory, December 2009.

Benjamin Olson / Storm clouds, Lakeville, Minnesota

Anup Shah / African elephants (Loxodonta africana) family herd feeding on loose soil for its minerals, with dramatic stormy skies behind, Maasai Mara National Reserve, Kenya. Taken with remote wide angle camera.