Times (UK): A male polar bear dragged the grisly remains of a cub that it caught and killed in the Hudson Bay area, Canada, after separating it from its mother — one of a growing number of instances of cannibalism on record, according to climate change campaigners. The bears may be forced into eating their own kind when the slower formation of Arctic ice leaves them with a shrinking platform from which to hunt seals, according to a study by American and Canadian scientists in 2006. The World …