, Feb. 19 -- Larry the Cat has completed 15 years as the resident mouse catcher at 10 Downing Street, becoming one of the most recognisable and enduring figures in British public life.

The 19-year-old tabby, whose official title is chief mouser to the Cabinet Office, has served under six prime ministers and grown into a familiar sight outside the famous black door in central London.

Frequently seen lounging on the doorstep, chasing pigeons or attracting media attention, Larry has become as much a part of Downing Street's identity as the building itself.

Larry was adopted in February 2011 from the Battersea Dogs and Cats Home by then prime minister David Cameron and his wife Samantha. Cameron had said at the time that he was delighted t...