Polar bears are back in Britain. But should they really be living here?

In 2000, only one of these Arctic beasts was resident in the UK. Now there are 16. Is there any benefit to captivity for this climate-ravaged species?A small boy calls out the sights as the train speeds through the Suffolk countryside from London Liverpool Street.“Tractor. Church. Pigs. Polar bear! Dad! A polar bear!”Sailors visit the polar bear enclosure at London zoo in 1930. Below: a bear at Dudley Zoo in Worcestershire, 1937 (left), and Brumas, the first baby polar bear to be suc