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 它們可能像海貍那樣通過用長牙掘土和削劈來獲取食物,倫敦自然歷史博物館的恐龍專家鮑爾?巴勒特說。
百科解釋
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.