The whaling ships that sailed to the Arctic from Whitby would take polar bears as well as whales. These could be sold to zoos and fairs for a tidy price. Frequently a mother and cub would be encountered by the crew in the desolate landscape of the northern ice field.
This story is of a polar bear captured by the most famous of 18th century whaling captains, William Scoresby senior of Whitby.
Scoresby however fastened this particular bear to a point on the deck. With a regime of painful taps to the bear's black nose and rewards of whale meat for good behaviour, the good captain was able to lead the cub round the deck on a rope leash. By the end of the season he considered it tame.
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Much to everyone's surprise, Captain Scoresby added to his reputation by pushing his way through the rabble before anyone was injured. He walked up to the cub which proceeded to lick his hand with its long black tongue, welcoming back its master. He tied a length of rope around its neck and led it peacefully away, much to the relief of the assembled townsfolk.

