Anup Shah / Nile crocodile {Crocodylus niloticus) lunging at Wildebeest calf. Masai river Kenya

Klein & Hubert / Cape buffalo (Syncerus caffer) with Yellow-billed oxpckers (Buphagus africanus) drinking at waterhole in dry season, South Luangwa National Park, Zambia, Africa.

Denis-Huot / Aerial view of African elephants (Loxodonta africana) drinking and landscape, Samburu Game Reserve, Kenya

Doug Gimesy / Ringtail possum (Pseudocheirus peregrinus) licks water droplets from a train station bench at night. Gardenvale train station, Gardenvale, Victoria, Australia. September.

Ingo Arndt / Honey bees (Apis mellifera), drinking water on hot summer day, Germany.

George Sanker / American red squirrel (Tamiasciurus hudsonicus) on tree trunk drinking in a beaver pond early in the morning. Acadia National Park, Maine, USA. May.

Ann & Steve Toon / Aardvark (Orycteropus afer) drinking at night, Zimanga private game reserve, KwaZulu-Natal, South Africa. Medium repro only

Lucas Bustamante / Scarlet Macaws (Ara macao) drinking water inside an Amazonian claylick. Yasuni National Park, Orellana, Ecuador

Staffan Widstrand / RF - African bush elephant, (Loxodonta africana) at night, reflected in waterhole, South Africa

Jordi Chias / Gentoo penguin (Pygoscelis papua) drinking water from melting ice, Antarctic Peninsula, Antarctica.

Andy Rouse / Bengal Tiger (Panthera tigris) family drinking from pool, Ranthambhore, India

Paul Hobson / Turtle dove (Streptopelia turtur) standing at a drinking pool. Hungary. May.

Colin Varndell / Hornet (Vespa crabro) drinking at bird bath. Dorset, UK, July.

Ann & Steve Toon / Giraffe (Giraffa camelopardalis) drinking at night, Zimanga private game reserve, KwaZulu-Natal, South Africa August

Karine Aigner / Wild Bobcat (Lynx rufus) family of three cubs drinking water from bowl, with mother stretching . The mother chose to make her den underneath the house. Texas, USA, August. Taken with remote camera. Hi...

Will Burrard-Lucas / Black and white image of African elephant (Loxodonta africana) herd at waterhole, Tsavo Conservation Area, Kenya. Taken with a remote camera buggy / BeetleCam. Editorial use only. Other uses need clea...

Solvin Zankl / Honey bee (Apis mellifera) drinking honey in nest, Kiel, Germany, May.

Solvin Zankl / Honey bee (Apis mellifera) drinking honey in nest, Kiel, Germany, May.

Ann & Steve Toon / White rhino (Ceratotherium simum) at waterhole drinking at night, Zimanga Private Game Reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Elephants (Loxodonta africana) at waterhole drinking at night. One spraying water from trunk, Zimanga Private Game Reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Elephants (Loxodonta africana) at waterhole drinking at night, Zimanga Private Game Reserve, KwaZulu-Natal, South Africa.

Ann & Steve Toon / Egyptian goose (Alopochen aegyptiaca) with goslings, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Ann & Steve Toon / Common wildebeest (Connochaetes taurinus) with reflection at waterhole, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Ann & Steve Toon / Cape buffalo (Syncerus caffer) drinking at waterhole at night, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Ann & Steve Toon / Cape buffalo (Syncerus caffer) drinking at waterhole at night, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Ann & Steve Toon / Plains zebra (Equus quagga) drinking at waterhole at night, Zimanga private game reserve, KwaZulu-Natal, South Africa, September

Ann & Steve Toon / RF - Warthog male (Phacochoerus africanus) drinking, Zimanga game reserve, KwaZulu-Natal, South Africa, June. (This image may be licensed either as rights managed or royalty free.)

Rolf Nussbaumer / Greater roadrunner (Geococcyx californianus), adult drinking, Rio Grande Valley, South Texas, Texas, USA. June

Neil Aldridge / African elephants (Loxodonta africana) drinking in low evening light at a waterhole, Chobe District, Botswana. Vulnerable species.

Wim van den Heever / African elephants (Loxodonta africana) small herd at waterhole at sunset, Etosha National Park, Namibia

Yashpal Rathore / Asiatic elephant (Elephas maximus), herd drinking water and crossing Mountain River at dawn, Jim Corbett National Park, India.

Nick Garbutt / Leopard (Panthera pardus) female drinking at night. South Luangwa National Park, Zambia.

Wim van den Heever / Lions (Panthera leo) five drinking together, Ndutu, Tanzania

Wim van den Heever / Black rhinoceros (Diceros bicornis) mother and calf having a drink at night with perfect reflections. Etosha National Park, Namibia. Taken with infrared camera.

Wim van den Heever / Whooper swan (Cygnus cygnus) portrait, on frozen lake Kussharo, Hokkaido Japan, February.

Eric Baccega / African elephant (Loxodonta africana) and black rhinoceros (Diceros bicornis) bathing at waterhole at night with moon, Okaukuejo, Etosha National Park, Namibia, Africa. Taken with infrared camera.

Ann & Steve Toon / Banded mongoose (Mungos mungo) drinking, Zimanga Private Game Reserve, KwaZulu-Natal, South Africa, May

Klein & Hubert / African elephants (Loxodonta africana) with calves drinking at waterhole, Botswana.

Klein & Hubert / African elephant (Loxodonta africana) bull drinking at waterhole, Botswana.

Klein & Hubert / Impalas (Aepyceros melampus) females drinking at water hole, Botswana.