Mark Payne-Gill / African bullfrog / Giant bullfrog /Pixie frog (Pyxicephalus adspersus) male digs canal to rescue tadpoles from drying puddle, South-Africa. Second prize winner in this Wildlife Photographer of the Ye...

Neil Aldridge / A young Zu/'hoasi Bushman digs up a small tuber from the dry earth of the Kalahari, Botswana. April 2012.

Neil Aldridge / A Zu/'hoasi Bushman digs for a tuber using a stick in the dry ground of the Kalahari, Botswana. April 2012.

Alex Mustard / A Southern sand octopus (Octopus kaurna) digs into the sediment with its long arms at night. While many octopus dig holes, this is the only known species that forms a mucous-lined burrow complete with...

Kevin Schafer / Maleo (Macrocephalon maleo) back filling nest hole in sand, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging nest hole in hot sand for natural incubation, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging hole in hot sand for natural incubation, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) pair digging hole in hot sand, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging nest hole in hot sand, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging nest hole, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging nest in hot sand, Sulawesi, Indonesia, Endangered

Kevin Schafer / Maleo (Macrocephalon maleo) digging nest hole, Sulawesi, Indonesia, Endangered

Lisa Hoffner / Elephant (Loxodonta africana) digs hole in the dry Ewaso Nyiro riverbed looking for water during the worst drought (2008-2009) in more than a decade in Northern Kenya. August 2009.

Juergen Freund / Steinitz' shrimp goby (Amblyeleotris steinitzi) with parasitic nudibranch (Gymnodoris nigricolor) feeding on its dorsal fin, the goby lives in symbiosis with the shrimp who digs a burrow which the gob...

Juergen Freund / Steinitz' shrimp goby (Amblyeleotris steinitzi) with parasitic nudibranch (Gymnodoris nigricolor) feeding on its dorsal fin, the goby lives in symbiosis with a shrimp who digs a burrow which the goby...

Solvin Zankl / Trench digger beetle {Lepidochora sp} digs little trenches in the sand surface of a dune which will collect water droplets from the fog, Namib desert, Namibia.

Richard Du Toit / Suricate / Meerkat "helper" digs for food for young {Suricata suricata} Kalahari Gemsbok NP, South Africa

Richard Du Toit / Suricate / Meerkat "helper" digs for food for young {Suricata suricata} Kalahari Gemsbok NP, South Africa

Kim Taylor / Hairy-legged mining bee female carrying pollen digs at entrance to burrow. UK.

PREMAPHOTOS / Leaf cutter ant queen digs nest {Atta bisphaerica} Cerrado, Brazil

Martin H Smith / Nile crocodile carries newly hatched young in mouth {Crocodylus niloticus} Madagascar. Nile crocodiles bury their eggs in sand and when the babies hatch they call out until the mother digs them up and...

Flip de Nooyer / Honey Buzzard (Pernis apivorus) digs out wasp nest, adult and larvae of bees and wasps makes up most of this birds' diet, Europe

Heidi & Hans-Juergen Koch / Hog-nosed Snake (Heterodon sp) close-up portrait, digs in the ground to hide as a defensive behavior when threatened, native to North America