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Page last updated at 22:38 GMT, Monday, 11 August 2008 23:38 UK

Meet Team GB's horses - eventing
Mary King and Call Again Cavalier at Burghley in 2005

Call Again Cavalier - Mary King
Irish bred 16.2hh Bay gelding, 15 years old
Owned by Edwin & Sue Davies and Janette Chin

At 15 years old, Cavvie, as Mary calls him, is one of the oldest British Olympic horses.

Mary took on the ride three years ago. So far, they have won team silver at the World Equestrian Games, plus European individual silver and team gold.

Cavvie likes his food and whinnies when he's hungry. He particularly loves grass and Mary says he will eat anything.

Mary has been galloping him in a rug to help get him used to the heat in Hong Kong.