Alex Hyde / Close-up of the underside of foot of Leaf-tailed gecko {Uroplatus sikorae} as it walks on vertical glass. The finely divided setae on the toe pads stick the gecko to the smooth surface through van der...

Edwin Giesbers / Rear view of hind legs, pad of foot and tail of Siberian tiger (Panthera tigris altaica) walking away in snow, captive

Roger Powell / Grey Squirrel (Sciurus caronlinensis) with only tail and a foot in view, fleeing. Lee Burn, Longframlington, Northumberland, UK, December.

Alex Hyde / Close-up of the underside of foot of Leaf-tailed gecko {Uroplatus sikorae} as it walks on vertical glass. The finely divided setae on the toe pads stick the gecko to the smooth surface through van der...

Nick Garbutt / Mossy Leaf-tailed Gecko (Uroplatus sikorae) u nderside of foot of in forest under storey at night. Masoala National Park, Madagascar.

Rick Tomlinson / A humpback whale (Megaptera novaeangliae) flukes its tail near SY "Adele", 180 foot Hoek Design, in the Lemaire Channel, Antarctica, January 2007. Non editorial uses must be cleared individually.

Chris Gomersall / Northern fulmar (Fulmarus glacialis) in flight over calm sea, with feet projecting above tail. Iceland, July 2006

Pete Oxford / Ring-tailed Lemur (Lemur catta) paw, Berenty Reserve, southern Madagascar

Philippe Clement / Close up of Brown rat's tail and foot {Rattus norvegicus} Belgium captive

Pete Oxford / Close up of foot of Fringed leaf tailed gecko {Uroplatus fimbriatus} Madagascar La Madrak

Ingo Arndt / Lined Flat-tail Gecko (Uroplatus lineatus) underside detail of foot with scales that have natural adhesive properties

Mark Moffett / Canopy salamander, has a prehensile tail and extra sticky feet which help them cling to plants as they climb around in canopy tree tops, lowland rainforest, Peru