Markus Varesvuo / Female Capercaillie (Tetrao urogallus) with newly hatched chick on nest, Kuhmo, Finland, June.

Sven Zacek / Hepatica (Hepatica nobilis) white morph and normal blue morph, Southern Estonia, April.

Wild Wonders of Europe / Zankl / Loggerhead sea turtle (Caretta caretta) emerging from shell, Dalyan delta, Turkey, July.

Pal Hermansen / Sprouting Soy beans (Glycine max) against white background

Shattil & Rozinski,Shattil & Rozinski / Mule deer (Odocoileus hemionus), with the Denver skyline and Rocky Mountains in the background, Denver, Colorado, USA, November.

Shattil & Rozinski,Shattil & Rozinski / Red fox (Vulpes vulpes) playing with a dead squirrel in a garden Denver, Colorado, USA, July.

Paul D Stewart / 'Martha' the last passenger pigeon, (Ectopistes migratorius), who died Cincinnati Zoo, September 1st, 1914. This portrait of her published in March 1915 as the Frontispiece to William Hornaday's 'The...

Barrie Britton / Lesser flamingos (Phoenicopterus minor). Lake Bogoria, Kenya. Picture taken during filming for BBC "Life" TV Series, May 2008

Alex Mustard / Bottlenose dolphin (Tursiops truncatus) with surface reflection, in shallow water over a sand bank. Sandy Ridge, Little Bahama Bank, Bahamas. Tropical West Atlantic

Doug Allan / Snow petrel {Pagodroma nivea} flying over snowy landscape, Antarctica

Sue Flood / Killer whale / Orca {Orcinus orca} attacks Grey whale calf {Eschrichtius robustus} California, USA

Dietmar Nill / Barn swallow {Hirundo rustica} flying over water with mouth open, hunting for insects, Germany