Unicorns appeared in Arthurian legend and are Scotland’s national animalA MYSTERIOUS “unicorn” skull has been unearthed near King Arthur’s castle. Tourist John Goodwin dug it up after spotting the long horn sticking out of moss on the edge of a Cornish cliff. When he pulled it free, he found a skull with a single tusk in the middle of its forehead — like the mythical creature. John, a plumber from Canada was near Tintagel — the supposed site of King Arthur’s Camelot castle — with wife Val and their daughter. He found the skull at St Nectan’s Glen, a spot...