Rounded pieces of fossil bone have been found here.

这里发现了圆形的化石骨片。

Such findings were based on different kinds of evidence — including stone tools, fossil bones and genetic studies.

该研究结果有多种证据为依据——包括石器、化石骨骼和基因研究。

Just like fossil bones, we see remnants of our ancestors, broken and buried, in these hard to find places.

就像骨化石，我们看到我们祖先的遗迹被损坏并且被埋在那些很难找到的地方。

The fossil bones were found near a skull that was discovered in 2001 in the African nation of Chad.

这些骨骼化石是2001年在非洲国家乍得发现的一个头骨附近发现的。

Rounded pieces of fossil bones have been found here.

人们在这里发现了圆形的骨骼化石。

And we do the same for the fossil bones.

我们对化石骨骼也做同样的事情。

To produce a thin section slide, we take a fossil bone.

为了制作薄切片幻灯片，我们取了一块化石骨头。

It's no wonder that so many fossil bones have been found on the bottom of these springs, clues that can open up a window on the ice age past.

毫无疑问，在这些泉水的河底能够发现很多骨骼化石，这些线索为了解冰河时代的过去打开了一扇窗子。

Researchers have been able to study the chemistry of condor fossil bones, to learn what different populations of condors were eating, even before the extinction began.

研究人员已经能够研究秃鹰化石骨骼的化学成分，了解不同种群的秃鹰吃什么，甚至在灭绝开始之前。

So a thin section slide ends up being about 100 micron thin slice of fossil bone that's been stabilized and secured onto a glass slide.

因此，薄切片载玻片最终成为约 100 微米的化石骨骼薄片，已稳定并固定在玻璃载玻片上。

The modern story of this flying giant starts in 1971, when geology student Douglas Lawson stumbled across the fossil bones of an enormous creature in Big Bend National Park, in Texas.

这个飞行巨人的现代故事始于 1971 年，当时地质学学生道格拉斯·劳森 (Douglas Lawson) 在德克萨斯州大弯国家公园偶然发现了一种巨大生物的化石骨骼。

What I was able to do was get my hands on a variety of fossil skull bones of Deinonychus and CAT scanned a variety of them to get a glimpse inside the head of Deinonychus.

我做的就是找到各种恐爪龙的头骨化石，并对它们进行CT扫描，以便能对其颅内有所了解。

Some fossil bones of Homo erectus are grossly deformed, and paleontologists have noted that this condition is similar to that found in people today who have been exposed to chronic overdoses of vitamin A.

直立人的一些化石骨骼严重变形，古生物学家注意到这种情况与现代长期服用过量维生素 A 的人的情况相似。