Last Updated on May 19, 2026 by admin
In May 1941, in the freezing waters of the North Atlantic, the British destroyer HMS Cossack pulled a wet, half-drowned black-and-white cat out of the wreckage of a sinking German battleship.
The battleship was the Bismarck — the pride of the Kriegsmarine, the most feared warship of the war’s opening years. She had been hit, finally, after a multi-day chase. Of the more than two thousand sailors aboard, about a hundred survived.
One of those survivors was a cat.
The German crew had called him Oskar. The British sailors who pulled him onto the Cossack didn’t know that name yet. They just called him “the cat” while they toweled him off.
He had survived the sinking of one of the most heavily armored battleships ever built.
It would not be the last time.
The second sinking
Five months later, in October 1941, Oskar was still serving as the ship’s cat aboard HMS Cossack.
The Cossack was escorting a convoy off Gibraltar when a German U-boat torpedoed her amidships. One hundred fifty-nine sailors went down with the ship.
Oskar did not.
He was again found floating in the Atlantic. He was again pulled from the water. He was again toweled off in the wardroom of a British destroyer — a different one this time — and taken back to Gibraltar.
The sailors started calling him Unsinkable Sam.
The third sinking
Two ships in one year, both sunk under him, was already enough to make a cat a legend in a navy that had been cataloging ship’s cats since the age of sail.
What happened next is what made him history.
On 14 November 1941 — three weeks after the Cossack went down — the aircraft carrier HMS Ark Royal was torpedoed by another U-boat just east of Gibraltar. The Ark Royal was one of the largest ships in the Royal Navy. She took thirteen hours to sink, which gave her crew time to evacuate; only one man died.
One man, and not one cat.
Survivors reported pulling a wet, exhausted black-and-white cat out of the water and onto a lifeboat. He was, by all accounts, the same cat.
Three sinkings. Six months. One small animal who had now outlived three different ships.
The retirement
The Royal Navy made a decision about Sam.
He was not going on another ship.
He was reassigned, formally, to shore duty — to the office buildings of the Governor of Gibraltar, where he spent his days catching mice and his afternoons sleeping in the sun. The official reasoning, half joke and half not, was that he still had “six lives to go” and the Royal Navy was not interested in finding out whether the math held.
He was later transferred to the United Kingdom, where he lived out the rest of his life at a place called the Home for Sailors — a retirement home for old men of the navy. He died there, peacefully, in 1955.
The asterisk
It is worth saying — because the kind of person who reads cat stories carefully will want to know — that there is no firm documentary proof that the same cat survived all three sinkings.
There is no record in journalist Ludovic Kennedy’s account of the Bismarck’s loss of any cat being recovered. There are no muster rolls of the German battleship’s animal complement. The story of Unsinkable Sam relies on the memories of the men who pulled him from the sea — and on a single small painted portrait of him that the Royal Naval Museum still keeps in its archives.
Maybe it was three different cats. Maybe it was the same cat. Maybe the truth is somewhere in the middle.
None of the sailors who passed the story down for the rest of their lives ever seemed in much doubt.
They had pulled a cat out of the ocean three times that year. They had brought him home. They had given him a name. 🐾