Sylvain Cordier / European holly ( Ilex aquifolium) , female tree with red fruits, Haut Rhin, France.

Terry Whittaker / Bay Icelandic horse feeding in the snow, Snaefellsnes Peninsula, Iceland, March.

Paul D Stewart / Woodcut of mythical creature with early colouring from Conrad Gesner's 'Icones Animalium' 1557. Publ. Christof Froshover, Zurich. Gesner takes this image from Breidenbach's 'Journey to the Holy Land'...

Jack Dykinga / Burrowing owl (Athene cunicularia) juvenile having difficulties with persistent ant attacks, Sonoran Desert near Tucson, Arizona USA

Jack Dykinga / Burrowing owl (Athene cunicularia) juvenile having difficulties with persistent ant ant attacks, Sonoran Desert near Tucson, Arizona USA, May.

Jack Dykinga / Burrowing owl (Athene cunicularia) juvenile having difficulties with persistent ant ant attacks. Sonoran Desert near Tucson, Arizona USA, May.

Nigel Cattlin / Ground elder (Aegopodium podagraria) an invasive and persistent umbellifer garden weed in flower, Berkshire, July,