Pal Hermansen / Avalanche on Gullemot (Uria aalge) nesting cliff on first day birds return to breed. Finnmark, Norway. March.

Nick Upton / Pine marten (Martes martes) male standing on a feeding table in a soft release cage after arrival from Scotland, during a reintroduction project by the Vincent Wildlife Trust, Cambrian Mountains, Wale...

Ben Hall / Greenfinch (Carduelis chloris) pair, one perched on branch and one hovering in snowfall, Derbyshire, February.

Sven Zacek / Male Ural owl (Strix uralensis) flying to nest to feed female, Southern Estonia, March.

Marie Read / Horned puffins (Fratercula corniculata), one landing with outspread wings, to join its mate on cliff ledge, St. Paul Island, Pribilofs, Alaska, USA, July.

Franco Banfi / Freshwater jellyfish (Craspedacusta sowerbii) Lake Lugano, Ticino, Switzerland. August. Invasive species.

Espen Bergersen / Common guillemot (Uria aalge) flock, circling outside the breeding colony at Hornoya birdcliff, Finnmark, Norway.

Pascal Kobeh / Short-finned pilot whale (Globicephala macrorhynchus) close to the surface, Costa Rica. Pacific ocean.

Sam Hobson / Peregrine falcon (Falco peregrinus), adult male landing on building. Bristol, UK. March.

Markus Varesvuo / Snowy owl (Bubo scandiaca) close up of female landing on snow covered ground, Canada, February. Magic Moments book plate.

Michael Pitts / Diver Ron Howse ascending the shot line in Lyme Bay, off Portland Bill, Dorset, England, UK, September 2010. Model released.

Enrique Lopez-Tapia,Enrique Lopez-Tapia / Gentoo penguin (Pygoscelis papua) and Antarctic cruise liner 'MV Ushuaia' in Neko Harbour, Andvord Bay. Antarctic Peninsula, Antarctica