A great and unusual story that you just have to read:
During World War 2 while on operations fighting German forces in the Arctic Circle in 1941, the British crew of the T-class submarine "HMS Trident" were given an unusual gift by a Soviet naval admiral, a reindeer.
Originally the HMS Trident consisted of a crew of 56 and now plus one reindeer.
The 56 crewmen spent six weeks sharing their already confined living accommodation with the fully-grown reindeer nicknamed "Pollyanna"
At that Time the Russians were so grateful to the British especially at the time when no-one else was helping them - and this was all they had to give.
The story goes something like this, the British captain had mentioned his wife having trouble pushing her pram through the snow in England. And the Russian admiral said "what you need is a reindeer!".
And because the reindeer was a gift, they didn't want to be rude by refusing it.
Living with a reindeer underwater in wartime conditions posed big challenges for the crew. A barrel of moss given by the Russians soon run out and Pollyanna lived on scraps from the galley. She also developed a taste for wartime favourite, Carnation condensed milk.
Pollyanna was originally lowered into the submarine through a torpedo tube of the sub and it was hoped she could sleep in the torpedo and food store.
However she apparently had more refined tastes and insisted on sleeping under the captain's bed.
Apparently when the submarine surfaced for air, Pollyanna would barge her way through the narrow corridors to the main hatch to get some fresh air before returning to the officers quarters.
Despite Pollyanna eating a navigation chart, the crew made it back to the England where HMS Trident landed at Blyth in Northumberland.
However as the reindeer had over-indulged on condensed milk she had actually put on weight and could not be fitted out through the torpedo tube.
A dockside winch, with some assistance from a crewman with a broom finally managed to get Pollyanna squeezed out of the submarine and onto dry land.
She was given to Regents Park Zoo(now London Zoo) where she lived out the rest of the war - although whenever she heard a loudspeaker or siren she was said to have ducked down as if she was still on the submarine.
Ironically Pollyanna died a week after her old ship HMS Trident was decommissioned and scrapped in 1947.
Gosport's Royal Navy Submarine Museum has the "HMS Alliance", a similar looking World War 2 submarine to HMS Trident on permanent display.
And as part of a festive weekend at the start of December 2009, the museum offered children the chance to visit Santa inside the submarine, and although no reindeer was squeezed down the torpedo tube, a barrel of moss was left in the torpedo store in recognition of one of the Royal Navy's most unusual passengers during World War 2.
Imagine that, a reindeer on a submarine, just when you thought you heard it all