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Roly Poly the overweight hedgehog (right) on a set of scales with a normal sized hedgehog. See SWNS story SWHOG; A hedgehog which got so fat he could not roll into a ball has been put on a diet - after ballooning to TWICE his normal size. Roly Poly the portly hedgehog was officially declared to be obese after gobbling huge bowls of cat food. Rotund Roly was found in a garage wrapped up in an old Father Christmas jacket - he was too underweight to hibernate, and would have surely perished if a retired couple had not taken pity on him. The cute hedgehog spent the winter on a heated pad in a conservatory in Minehead, Somerset, and ballooned to almost 2kg by munching bowls of cat food.

Best Animal Pictures Of 2012

From a cheeky sloth gatecrashing a holiday snap to a harmless gannet that transformed itself into a Great White, here is a collection of the most memorable animal pictures of the year.