这些恐龙都是更大更壮的鸟臀目恐龙，例如剑龙、甲龙和鸭嘴龙的先祖。
These dinosaurs were the forerunners of the bigger and more spectacular ornithischians like stegosaurus, ankylosaurus and the duck-billed dinosaurs.
科学家们指出，这些鸭嘴龙的骨骼化石很难随着地层断裂迁移到较为年轻的地层之中。
Scientists point out that the it is very difficult for these duck-billed dinosaur fossil bones to move to more younger strata as of the fracture formation.
山东诸城是我国研究白垩纪地层和古生物的经典地区之一，特别以产出晚白垩世鸭嘴龙类恐龙化石群而闻名中外。
Zhucheng City of Shandong Province is one of classic areas for the study on Cretaceous strata and fossils in China, yielding rich Late Cretaceous hadrosaurid dinosaurs famously.
这些纹路能告诉科学家们这些动物可能是怎样咀嚼食物的，而牙齿上并没有坑坑洼洼的小坑，这个迹象告诉我们鸭嘴龙吃什么。
While the scratches told the scientists how the animal may have chewed, the lack of pit marks on the teeth suggested what the hadrosaur was eating.
鸭嘴龙的癌症病因至今还是个谜，但恐龙化石帮助我们揭开了隐藏了百万年之久的秘密。谁知道它们还会揭示什么呢。
The cause of hadrosaur cancer remains a mystery today, but dinosaur fossils are helping unlock secrets of diseases millions of years old. Who knows what else they'll reveal.
鸭嘴龙超科的骨骼化石和分散的恐龙蛋共存于同一层位，大部分的骨骼化石属于未离巢晚期和幼年早期的个体发育阶段。
The hadrosauroid remains occur with scattered dinosaur eggs at the same horizon. The majority of the bones may come from the late nestling and early juvenile stages.
科学家周一宣布发现了似乎是世界上最完好的鸭嘴龙化石： 67亿岁的植物，动物，其中包含恐龙化石和皮肤组织，并有可能肌肉和器官。
Rare Mummified Dinosaur Unearthed: Contains Skin, and Maybe Organs, Muscle
另科学家十分惊奇的是，仅有一组恐龙是癌症的受害者——它就是鸭嘴龙。研究人员在97个恐龙的尾骨里发现了29个良性肿瘤块。
Much to their surprise, they found that only one group suffered from cancer-the hadrosaurs, or "duck-billed" dinosaurs. 29 benign tumors were found in the tail bones of 97 animals.
另科学家十分惊奇的是，仅有一组恐龙是癌症的受害者——它就是鸭嘴龙。研究人员在97个恐龙的尾骨里发现了29个良性肿瘤块。
Much to their surprise, they found that only one group suffered from cancer-the hadrosaurs, or "duck-billed" dinosaurs. 29 benign tumors were found in the tail bones of 97 animals.
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