They may instead have used their long teeth to dig and chop , in the same way that beavers do , says paul barrett , a dinosaur expert at the natural history museum , london 它们可能像海狸那样通过用长牙掘土和削劈来获取食物,伦敦自然历史博物馆的恐龙专家鲍尔?巴勒特说。
Paul Franklyn "Legs" Barrett (born 1940 in Blackwood, Monmouthshire) is the UK's best known agent and manager of 1950s style Rock and Roll artistes, an author and previously a singer and film actor. Barrett is the discoverer, mentor and first manager of the singer now known as Shakin' Stevens during the 1960s and 1970s, but has also represented and promoted many more of the genre's greats during a long and varied career.