恐龙探秘

　　这是一具剑龙的化石骨架。剑龙生活在侏罗纪早期至白垩纪早期（据今约1亿4000万年前）以植物为食。剑龙背上长有两排骨板，据悉，骨板有调节体温和抵御天敌袭击的功能。
　　This is the fossil framework of a stegosaurs.stegosaurus lived in the jurassic earlier period (about 1hurdred millon 4000 ten thousand years ago).regarding plant as the food. The stego saurus has two ranks boneplank on the back. According to all,the boneplank has a function to regulate the boneplank has a function to regulate the body temperrature and resist assaulting of its natural enemy.