It may look like a grubby bit of rock but this ancient carving has caused a stir among archaeologists and hedgehog lovers. It is a prehistoric toy hedgehog and was unearthed from a three-year-old child's grave at Stonehenge in Wiltshire. Thought to be about 2,500 years old, it is the earliest known depiction of a hedgehog in Britain. 'Amid the aura of gloom that surrounds Stonehenge, it comes as a beam of light to find a child's toy,' said archaeologist Dennis Price. A rock found is believed to be a prehistoric toy hedgehog for a child