Such a predator would have been unable to take on an adult ornithopod.

这样的掠者本不能捕一头成年亚目草恐龙。

Bigger, three-toed footprints came from large-bodied, two-legged plant-eaters called ornithopods or perhaps, the researchers say, a large theropod.

研究人员说，更的、三趾的印来自体型庞的两动物--动物，或者是一种型兽动物。

Most, but not all, were ornithopods.

绝部分是亚目草恐龙。

That is certainly large enough to take on an adult ornithopod.

到足以捕杀一头成年亚目草恐龙。

Dinosaur fossils have been found on farms like these dinosaurs called ornithopods in China.

恐龙化石在中国的农田中被发现过，比如一种叫做恐龙的。

There were teeth, vertebrae, and limb bones from the ornithopod Iguanodon.

有禽龙的牙齿、脊椎骨和四肢骨。

Ornithopods started off as bipeds, but the larger hadrosaurus probably walked on all four legs most of the time.

动物一开始是两足动物，但体型较的鸭嘴龙可能部分时间都是四足行走。

Which of these animals are ornithopods?

以下哪些动物是动物？

Admontosaurus and Iguanodon were both ornithopods.

Admontosaurus 和 Iguanodon 都是动物。

The Cretaceous equivalent of zebra and antelopes-the victim species in every wildlife documentary about the dramas of the African savannah-were herbivorous dinosaurs called ornithopods.

白垩纪被称为亚目草恐龙其地位相当于斑马和羚羊--每部有关非洲草原的纪录片中被捕杀的种群。

You might be familiar with some of the more famous species of ornithopod, like iguanodon, which comes from much, much later on in time.

你可能对一些更为著名的恐龙物种有所耳闻，比如来自较晚时期的禽龙。

If we put these animals back on our generalized tree of dinosaur relationships, Ouranosaurus would be over here with the ornithopods, things like Hadrosaurus and Iguanodons.

如果我们把这些动物放回我们的恐龙关系树中，王龙就会和动物一起出现在这里，比如鸭嘴龙和禽龙。

But we've also done it through histology, which is the sort of microstructure, in this case of the bones, and it matches a group of dinosaurs called ornithopods.

我们还通过组织学进行了验证，组织学研究的是微观结构，这里指的是骨骼的微观结构，结果与一被称为恐龙的化石相吻合。

When Ms Drumheller and Mr Boyd examined the bones of juvenile upper-Cretaceous ornithopods dug up in Utah they saw marks on one skeleton that looked suspiciously like those modern crocodiles inflict when biting and tearing at their prey.

当庄姆海勒与博依德对犹他州出土的白垩纪年幼的亚目草恐龙的化石进行检查时，他们在一副骨架上发现了看上去像是遭受现代鳄鱼撕咬的痕迹。