Sven Zacek / Ural owl (Strix uralensis) female perching on birch branch surrounded by fresh spring greenery, Tartumaa county, Southern Estonia. May.

Ashley Cooper / Woman carrying a load of foliage from the surrounding forest to feed goats and cows. Annapurna, Himalayas, Nepal, December 2012

Ashley Cooper / Gentoo penguin (Pygoscelis papua) with huge gash, probably from Leopard seal (Hydrurga leptonyx) attack, Hannah Point, Livingstone Island, South Shetland Islands, Antarctica.

Pat Tuson / Vote Green Party banner amongst greenery, London Borough of Richmond upon Thames

Robin Chittenden / Mute swan (Cygnus olor) in flight over water with greenery in the background, Whitlingham CP, Norfolk, UK. January

Tui De Roy / Galapagos Land Iguana (Conolophus subcristatus) large colorful male in rainy season greenery, Urvina Bay, Isabella Island, Galapagos Islands, Ecuador

Doug Gimesy / Aerial view after sunrise, showing the sun reflecting off water that has flowed into Lake Eyre South and formed a pond; the water being the result of recent uncommonly high local desert rainfall. Salt...

Sven Zacek / Birch (Betula sp) forest in spring greenery in Tartumaa county, Southern Estonia. May.