Unfortunately, the real world is rife with exceptions and edge cases - duck-billed platypuses are furry and lay eggs.
不幸的是，真实的世界总是充满了例外和极端情况—鸭嘴兽既有皮毛，又通过产卵繁殖后代。
These dinosaurs were the forerunners of the bigger and more spectacular ornithischians like stegosaurus, ankylosaurus and the duck-billed dinosaurs.
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。
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.
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。
Fish, some amphibians and primitive egg-laying mammals such as the duck-billed platypus use similar pits to pick up electric fields generated by nearby animals.
鱼，一些两栖类和原始的产卵的哺乳动物，如鸭嘴兽，使用类似的凹陷获得附近的动物产生的电场。
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。
The Li men jostle to sell me supper, all of it live: white-breasted waterhens, little egrets, a black-crowned night heron and a spot-billed duck, the only duck where male and female look alike.
黎族人争相向我兜售晚餐，全部是活的：白胸苦恶鸟，小白鹭，黑冠夜鹭，斑嘴鸭，这是唯一一种雌雄看起来都很像的鸭子。
The Li men jostle to sell me supper, all of it live: white-breasted waterhens, little egrets, a black-crowned night heron and a spot-billed duck, the only duck where male and female look alike.
黎族人争相向我兜售晚餐，全部是活的：白胸苦恶鸟，小白鹭，黑冠夜鹭，斑嘴鸭，这是唯一一种雌雄看起来都很像的鸭子。
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