Ann & Steve Toon / Photographer Ann Toon photographing Cape ground squirrels (Xerus inauris) Kgalagadi Transfrontier Park, South Africa, January 2016. Model released.

Juergen Freund / Timelapse of photographers Stella and Jurgen Freund camping, with campfire, Chillagoe, North Queensland, Australia, 2015.

Kirkendall-Spring Photographers / Vicky Spring next to a small tarn, Lyman Lakes Basin, Glacier Peak Wilderness, Wenatchee National Forest, Washington, USA, September 2014. Model released.

Erlend Haarberg / Photographer silhouetted on Mt Luottotjakka overlooking the Arjep Luottojekna and Nuortap glaciers at sunset, Sarek National Park, World Heritage Laponia, Swedish Lapland, Sweden, August 2013.

Jeff Vanuga / Traffic jam caused by Grizzly bear (Ursus arctos horribilis) mother and cubs crossing road, watched by tourists and photographers, Yellowstone National Park, Wyoming, USA, October 2015.

Inaki Relanzon / Photographer Inaki Relanzon with African elephant (Loxodonta africana) calf at David Sheldrick African Elephant Orphanage. Nairobi National Park, Nairobi, Kenya.

Laurent Geslin / Photographer Laurent Geslin putting back wild European lynx (Lynx lynx) kittens in den after a veterinary check up. Switerland, June 2014.

Andy Rouse / Bengal tiger (Panthera tigris tigris) with tourists watching from cars, Ranthambore, India

Pete Oxford / Red-footed Booby (Sula sula) flying juvenile being photographed by tourist, Genovesa Island, Galapagos Islands, Ecuador

Pete Oxford / Marine Iguana (Amblyrhynchus cristatus) group photographed by tourist, Fernandina Island, Galapagos Islands, Ecuador

Pete Oxford / Greater Flamingo (Phoenicopterus ruber) in lagoon with tourists nearby, Isabela Island, Galapagos Islands, Ecuador

Mark Raycroft / Elk (Cervus elaphus) bull approaching car and tourist in territorial display, North America, sequence 2 of 3