Images Dated 18th March 2008

Cliff Tunnel

A line of smoke stacks along the top of Shakespeare Cliff between Dover and Folkestone, marking the location of a railway tunnel, 1937. The tunnel is replacing a existing line which runs along the foot of the cliffs, making it vulnerable to landslides. (Photo by Harry Todd/Fox Photos/Hulton Archive/Getty Images)

Palmers Tree Frog, stage between tadpole and frog

Palmer's Tree Frog, stage between tadpole and frog, San Cipriano, Choco, Colombia Palmer's Tree Frog, stage between tadpole and frog, San Cipriano, Choc, Colombia

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Laysan albatross (Phoebastria immutabilis) head portrait calling mate, Guadalupe

Laysan albatross (Phoebastria immutabilis) head portrait calling mate, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

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