Paul Williams / View from plane of eroded salt dome, Kavir Desert, Iran, December.
Mark Taylor / Forced Perspective photo of a giant in the saltflats of Salar de Uyuni, Bolivia.
Mark Taylor / Forced perspective photo of a young woman appearing to stand / balance on a dog's nose, UK.
Mark Taylor / Forced perspective photo of a horse appearing to stand on a dog's back, UK.
Maxime Aliaga / Forced perspective photo of a giantwoman in the saltflats of Salar de Uyuni, Bolivia.
Klein & Hubert / Domestic pig (Sus scrofa domestica) sow swimming in the sea with mouth wide open and people in a zodiac. Bahamas
Sandesh Kadur / Sambar (Rusa unicolor), Ranthambore National Park, Rajasthan, India. Antlers and ears of male visible behind female. Vulnerable species.
Sandesh Kadur / Diademed sifaka (Propithecus diadema), mother carrying her young on her back (legs of young are visible beneath mother's). Andasibe National Park, Madagascar. Critically Endangered species.
Mary McDonald / South African / Cape giraffe (Giraffa camelopardalis giraffa), two males necking / mock fighting, looking like a double headed animal, Zimanga Private Game Reserve, Zululand, South Africa.
Konrad Wothe / Ostrich (Struthio camelus) male preening, looking headless, Samburu Reserve, Kenya, Africa
Klein & Hubert / Two Harvest mice (Micromys minutus) investigating holes in Emmental cheese. Captive in studio.
Klein & Hubert / Meerkat (Suricata suricatta) sunbathing at den before foraging. Kalahari Desert, Africa. (Shadow gives illusion of handcuffs).
Klein & Hubert / Two Chinstrap penguins (Pygoscelis antarcticus) climbing to rookery in spring, looking like one penguin with two sets of wings, Antarctica.
Heather Angel / Emperor penguin (Aptenodytes forsteri) parent feeding chick, another chick next to it looks headless, Antarctica
Dr. Gertrud Neumann-Denzau / Two male Indian Wild Asses (Equus hemionus khur), looking like they share a single head, Little Rann of Kutch, Gujarat, SW India.
Fabrice Cahez / Common crane (Grus grus) in flight, looking like it has two sets of wings, France. Wings of second individual visible in the background
Eric Dragesco / Two Chamois (Rupicapra rupicapra) in snow, Gran Paradiso National Park, Italy.
Edwin Giesbers / Two Reindeer (Rangifer tarandus) in snow, looking like a single double-headed animal, Norway. Captive
Diane McAllister / Humpback whale (Megaptera novaeangliae) breaching in front of boat carrying tourists. Monterey Bay, California, USA.
David Welling / Collared peccaries (Tayassu tajacu) interacting, two looking like one, Hidalgo Lower Rio Grande Valley, Texas, USA. (non-ex)
David Allemand / Lappet-faced vultures (Torgos tracheliotu) looking like one double-headed bird, Etosha National Park, Namibia, Africa
Claudio Contreras / Blue footed booby (Sula nebouxii) watching chick, Isabel Island National Park, Sea of Cortez (Gulf of California) Mexico.
Franco Banfi / Wild Alpine newt (Ichthyosaura alpestris) female Bedretto valley, River Ticino, Switzerland
Denis-Huot / Storm over the plains at sunset, Masai Mara Game Reserve, Kenya, October.
Dr. Axel Gebauer / Heiligenschein phenomena / Fog bow effect through mist, Abago, Kavkazsky Zapovednik, Russia, July.
Lynn M Stone / Wolf's Gueonon Monkey (Cercopithecus pogonias wolfi) against a black background, captive from Congo, Rwanda and Uganda. Non-ex