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Page last updated at 17:48 GMT, Friday, 20 November 2009
Giraffe (Giraffa camelopardalis)
Giraffes use a small, powerful, supercharged heart to pump blood up the neck to the head, new research reveals.

A study of mammoth dung is helping unravel the mystery of what caused the great mammals to die out.

Amazing footage of a baby ibex's perilous escape from a fox is captured on film by a BBC natural history cameraman.


IN PICTURES
The Darwin 200 Photographic Competition.
The animals that call the famous gardens home.
Animals sighted by a IUCN seamount expedition.

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Common skate Skate may be fished to extinction
The first marine fish driven to extinction by commercial fishing?
Seahorse Seahorse 'hitchhikes' Atlantic
An American seahorse is found in European waters.
A white tiger and cub (file image) Czech zoo lions kill rare tiger
Two lions at a zoo have killed a rare white tigress.
Hatchetfish (Argyropelecus aculeatus) Seamount diary: November 2009
IUCN scientists unveil the mysteries of underwater seamounts.
A QUESTION OF LIFE
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