Pascal Kobeh / Lined Thuridilla / Orange-edged sapsucking nudibranch / sea slug (Thuridilla lineolata), Sulu sea, Philippines

Konrad Wothe / Leopard slug (Limax maximus) Bavaria, Germany, July.

Pascal Kobeh / Pleurobranch nudibranch (Pleurobranchus forskali) Sulu Sea, Philippines

Duncan Murrell / Snail (Amphidromus sp.), Gunung Mulu National Park, UNESCO World Heritage Site, Sarawak, Borneo.

Duncan Murrell / Green snail (Rhinocochlis nasuta), Kinabalu Park, UNESCO World Heritage Site, Sabah, Borneo.

Duncan Murrell / Giant land snails (Bertia brookei), Gunung Mulu National Park, UNESCO World Heritage Site, Sarawak, Malaysian Borneo.

Denis-Huot / Burgundy snail (Helix pomatia), close-up of an eye, Normandy, France

Rod Williams / Kentish Snail (Monacha cantiana) Hutchinson's Bank, New Addington, London, England, UK. August.

Guy Edwardes / Mass of Snails (Helix aspersa) hibernating in Beech Tree, Dorset, England, UK. December.

David Perpinan / Use of a doppler probe to detect heart rate in a captive African giant snail (Achatina fulica), Small repro only.

Loic Poidevin / White garden snail (Theba pisana) on wood, Vendee, France, August.

Loic Poidevin / White garden snail (Theba pisana) on plant, dunes of Vendee, France, August.