Stephen Dalton / Common garden snail (Helix aspersa) on brick wall, England, UK

Mike Read / Eurasian treecreeper (Certhia familiaris) on Ivy (Hedera helix) growing on English / Pendunculate oak (Quercus robur) tree, Hampshire, England, March

Wild Wonders of Europe / della Ferrera / Pedunculate oak (Quercus robur) covered in thick stems of Common ivy (Hedera helix) Hutovo Blato Nature Park, Bosnia and Herzegovina, May 2009

Wild Wonders of Europe / Maitland / Turkish / Balkan edible snail (Helix lucorum) on car wing mirror with person taking it off, Stenje region, Galicica National Park, Macedonia, June 2009, Model released

Wild Wonders of Europe / Maitland / Turkish / Balkan edible snail (Helix lucorum) on plant, Stenje region, Lake Macro Prespa, Galicica National Park, Macedonia, June 2009

Chris O'Reilly / Common snail {Helix aspersa} Adult on moss covered stone at night in rain, Garden, Autumn, Derbyshire, UK

Paul Hobson / Hedgehog eating snails {Erinaceus europaeus} Yorkshire, UK snail (Helix aspersa)

PREMAPHOTOS / Dune snail bee {Osmia aurulenta} seals empty shell {Helix aspera} with leaf mastic for nest. UK

Konrad Wothe / Edible Snail (Helix pomatia) in motion, Germany

Konrad Wothe / Edible Snail (Helix pomatia) crossing moss on floor of deciduous forest, Germany

Warwick Sloss / Common garden snail (Helix aspera) at night in garden. England, UK, Europe

Cyril Ruoso / Edible snail / Escargot (Helix pomatia) in woodland. Yonne, Bourgogne-Franche-Comte, France. April.