Igor Shpilenok,Igor Shpilenok / Kamchatka Brown Bear (Ursus arctos beringianus) stands on its back legs to more easily determine the source of an unfamiliar sound. Kronotsky Zapovednik Nature Reserve, Kamchatka Peninsula, Russian Fa...

David Noton / Dramatic evening sky over Anse Source d'Argent, La Digue. Seychelles. February 2007.

Terry Whittaker / 2020VISION / Feral pigeon (Columba livia) on ground, with people's feet in the background, South Bank, London, England, UK, September. Did you know? In the 16th Century England pigeon guano was the only source of...

Alex Mustard / 2020VISION / Thong seaweed (Himanthalia elongata) and various other seaweeds in shallow water, Cairns of Coll, Island of Coll, Inner Hebrides, Scotland, UK, North Atlantic Ocean, August. Did you know? Seaweed is a...

Simon Colmer / Honey bee (Apis mellifera) returning to hive and communicating nectar source to other workers, Sussex, UK

Juergen Freund / Moromaho Island is home to thousands of Coconut palms (Cocos nucifera). Twice a year farmers come to this island to harvest copra, the meat of the coconut, which is the source of coconut oil. Wakatobi...

Tim Laman / Large school of Trevally (Caranx) shelter beneath the jetty at Arborek Village. Many village docks in this area act as shelter for these fish, which provide a handy source of protein for villagers in...

Michel Roggo / Karst spring where water bubbles up from subterranean source, Julian Alps, Slovenia, June 2008

Solvin Zankl / Fog over the sand dunes of the Namib desert, Namibia - an important source of water for the desert animals.

Hanne & Jens Eriksen / Arabian waxbill {Estrilda rufibarba} flock on food source, Wadi Sardud, Tihama, Yemen

Kim Taylor / Honey bee {Apis mellifera} worker with full pollen sacs executing 'waggle dance' to indicate food source, UK

Pete Oxford / Granite outcrop, Source d'argent beach, La Digue, Seychelles. Coastal landscape