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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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。

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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。

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During the times of isolation, a number of species of giant duck-billed dinosaurs "roamed a much smaller area than you might think given that many were larger than elephants, " Gates said.

MSN: Dinosaur boom linked to rise of Rocky Mountains

New species of duck-billed and horned dinosaurs were being born at an explosive rate of every few hundred thousand years during the brief time when the two mountain ranges and the seaway coexisted.

MSN: Dinosaur boom linked to rise of Rocky Mountains

The plea agreement required that he abandon all claims on the T. bataar and the duck-billed dinosaur, and on four more Mongolian and Chinese dinosaurs to which federal prosecutors could now connect him: two oviraptors and two more T. bataars, one of them believed to be somewhere in Great Britain.

NEWYORKER: Bones of Contention