化石的

When a pile of poop discovered in an Oregon cave in 2002 was retested this year thanks to new techniques in DNA extraction, excited researchers determined that the ancient feces — officially called coprolites in polite archaeological terms — were human and were more than 14,000 years old, marking the earliest evidence of human presence in North America by almost two thousand years. Other bits and pieces of cultural material have turned up in the Americas and called the date into question, but the coprolites are the oldest of definite human ... extraction.

今年科学家对2002年在俄勒冈州一个洞穴发现的一堆粪便使用DNA提取新方法再次进行检查，他们惊喜地发现这堆粪便，也称粪便化石是人类的粪便，距今1.4万年之久，这标志着人类在北美存在的最早证据提前了两千年。

Through mass fieldworks, we have collected a great amount of mammalian fossils, including primate fossils.

通过大量的野外工作，采集到数量可观的包括灵长类在内的化石标本。

It would have looked similar in life to the fleet-footed predators that menaced a young girl on the beach during the opening scene of "The Lost World," the second Jurassic Park movie.

这具化石保存有异常完好的骨骼结构，因此可以将其明确地归入到恐龙家族中长有羽毛的一类。由于它所有的近亲都长着羽毛，所以考古学家认为Juravenator也是如此。

This burgeoning supply of carbon comes largely from the burning of fossil fuels—coal, oil and natural gas.

快速增加的碳供给量，大部份来自化石燃料的燃烧，例如煤、石油、天然气的使用。

When fossil fuels i.e. oil, gas and coal are burned to provide energy for lighting, cooking etc. they form polluting gases.

当化石燃料如石油，天然气和煤炭燃烧，以提供能源的照明，做饭等，他们的污染形式是气体的排放。

If we could find more ways to harness solar power safely and efficiently, we could get much more usable energy from it than we currently get from burning fossil fuels like oil, coal, and gas.

假如能够找出更多安全有效的方法来利用太阳能，就能从中获得更多有用的能源，这比我们目前以燃烧石油、煤、汽油等化石燃料所获得的能源还要多。

If we could find more ways to harness solar power safely and efficiently, we could get much more usable energy from it than we currently get from burning fossil fuels like oil, coal, and gas.

如果能够找出更多安全有效的方法来利用太阳能，就能从中获得更多有用的能源，这比我们目前以燃烧石油、煤、汽油等化石燃料所获得的能源还要多。

Moreover , an X-ray analysis of the regions of the feathers containing these bodies showed them to be composed mainly of carbon -as would be expected if they were fossilised melanosomes .

而且，对含有该结构的羽毛区域的X射线分析显示，它们主要由碳元素组成--而如果它们是黑色素体化石，就正和预想的一样。

But trace imprints found in other fossilised feathers despite an absence of carbon may indicate the original presence of melanosomes that have since been lost to oxidation .

而其他羽毛化石中找到的痕迹，也许能显示已经因氧化而消失的黑色素体的原始存在。

Now the team is eyeing a cocktail of clay, sand, and diatomaceous earth, which has a flour-like consistency but is made of the fossilised remains of diatoms, algae whose cell walls are made of silica.

现在这个科研组把目光转向一种粘土、沙子和硅藻的结合物上，这种物质像粉末，但是是由硅藻、海藻等化石残体组成的，这些物质的细胞壁都是由硅石构成。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了