Let's return to the microraptor fossil.

让我们回到小盗龙的化石。

Among the artifacts was a microraptor fossil estimated to be approximately 120 million years old.

其中一件是古生物小盗龙化石，距今约1亿2千万年。

Paleontologists identified a tiny foot behind the fossilized 120 million-year-old rib cage of a crow-sized microraptor.

古生物学家在1.2亿年前乌鸦大小的小盗龙的胸腔化石后面发现了一只小脚。

And the last meal of this particular specimen of Microraptor did, indeed, have a long third toe.

而小盗龙的最后一餐显然长有长长的第三个脚趾。

And from those imprints, we can determine that these microraptor feathers were similar to modern dinosaur, as in bird, feathers.

从这些痕迹中，我们能知道这些盗龙的羽毛和现代的恐龙很相似，就像鸟类的羽毛。

The four wing dromaeosaur Microraptor was glossy black.

四翼驰龙小盗龙是有光泽的黑色。

For dinosaurs like Microraptor, there's direct evidence of feathers right there in the rock.

对于像小盗龙这样的恐龙，岩石中有羽毛的直接证据。

Xu named it " Microraptor." And we started thinking of what this means.

徐将其命名为“小盗龙”。我们开始思考这意味着什么。

Dinosaurs that are closely related to birds - like Microraptor and Archaeopteryx - had feathers like these.

与鸟类密切相关的恐龙——如小盗龙和始祖鸟——有这样的羽毛。

But unlike modern birds, Microraptor had not yet evolved the specialized shoulder anatomy for powered, flapping flight.

但与现代鸟类不同的是，小盗龙尚未进化出用于动力扑翼飞行的专门肩部解剖结构。

There are now at least 30 specimens of Microraptor in China.

中国目前至少有30个小盗龙标本。

If Microraptor couldn't splay its hind limbs, how did it use its leg feathers in flight?

如果小盗龙无法张开后肢，它是如何利用腿部羽毛来飞行的呢？

Microraptor could spread its forelimbs out to the side to make an aerodynamic wing, just as birds do.

小盗龙可以将前肢向侧面展开，形成符合空气动力的翅膀，就像鸟类一样。

I think that Microraptor completely destroyed all hope for a terrestrial origin of flight.

马丁：我认为小盗龙彻底摧毁了地球起源飞行的所有希望。

But who's got the real Microraptor?

但谁拥有真正的小盗龙呢？

NARRATOR: By chance, Microraptor is also under investigation at the University of Kansas.

旁白：碰巧，堪萨斯大学也正在对小盗龙进行调查。

NARRATOR: Norell doubts that Microraptor was anything other than a typical dinosaur with legs straight under the body.

旁白：诺雷尔怀疑小盗龙不是一种典型的腿伸直在身体下方的恐龙。

Microraptor has a fully developed wing on its hind legs.

马丁：小盗龙的后腿上有一个发育完全的翅膀。

Microraptor is absolutely deadly to the dinosaur origin of birds.

马丁：小盗龙对于恐龙起源的鸟类来说绝对是致命的。

Now they think Microraptor could solve the puzzle, but they still don't agree on the solution.

现在他们认为小盗龙可以解决这个难题，但他们仍然没有就解决方案达成一致。