Quartz is quartz—a silicon ion surrounded by four oxygen ions—there's no difference at all between two-million-year-old Pleistocene quartz and Cambrian quartz created over 500 million years ago.
石英是石英——由四个氧离子围绕的硅离子——200万年前的更新世石英和5亿年前的寒武纪石英之间没有任何区别。
What we found in this 52 million year old amber is that the insects contained in it already show close connections to European fauna of almost the same time.
在这块5200万年前的琥珀中我们发现里面包着的昆虫已经跟同时期的欧洲动物群有了紧密的联系。
A night spent camping on the sand dunes of this three-million year old desert, watching the sky change colors at dusk, is a dream come true for any nature lover.
如果晚上露营在这个有三百万年历史的沙漠上，看着天空随着傍晚的来临不断变幻，如同梦境。
As described in a September 17 Science article co-authored by Brusatte, tyrannosaurs came in a wide range of sizes, shapes and habits over their 100 million year history.
9月17日发表在《科学》杂志上的一篇文章认为，在一亿年的进化历史中，暴龙科的体型、外表和习性都发生了巨大的改变。
The number of couples getting married also increased last year, with 9.45 million marriages registered nationwide, an increase of 1.2 million year on year, the report said.
去年，全国的结婚数量也有所上升，登记结婚数达到945万例，比去年同期增长120万例。
Paleontologists found that amongst the 39 million year old fossils there were three distinct families of anthropoid primates, all of whom lived in the area at approximately the same time.
古生物学家发现，在这些三千九百万年前的古老化石中，有三个特征不同的类人猿家族，它们都在同一时期生活在这一地区。
This may have been triggered by a 250-million-year lull in volcanic activity, which would have meant less carbon dioxide being pumped into the atmosphere, and a reduced greenhouse effect.
这可能是长达2.5亿年的火山活动间歇所引发的，那意味着更少的二氧化碳被排放到大气中，温室效应也降低了。
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft bodied and simply did not fossilize.
在这重要的一亿年的周期内缺乏化石（记录），关于这一点，有一种解释是早期的动物是软体动物，所以它们无法形成化石。
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft-bodied and simply did not fossilize.
关于在这一亿年的重要时期中没有化石，有一种解释是，早期的动物是软体动物，根本不会变成化石。
The 125-million-year-old species Sinosauropteryx, for example, has bristles on its skin, and scientists found melanosomes in the tail bristles.
例如一亿二千五百万年前存活在世的中华龙鸟种群，全身长满刚毛，科学家们从它们尾部的刚毛处发现存在有黑素体。
This eastern collared lizard was posing on a 225-million-year-old petrified tree trunk.
东部的领蜥蜴在有2.25亿年历史的石化树干上摆好了拍照的姿势。
Scientists have found a 67 million-year-old fossil of a snake coiled around dinosaur eggs and a hatchling.
科学家在一块6700万年的化石中发现了一条蛇盘绕在恐龙蛋和一只幼仔周围。
Very early shorebirds that pecked the ground alongside dinosaurs were already behaving exactly like their modern counterparts, according to 110 million-year-old rock fossils.
从1亿1千万年前的化石可以看出，很久以前在恐龙身边觅食的滨鸟已经和它们生活在现代的后代具有一样的啄食行为了。
This 700-million-year-old formation gives few clues to the origins of modern animals, however, because paleontologists believe it represents an evolutionary experiment that failed.
然而，这个7亿年历史的地层几乎不能为现代动物的起源提供任何线索，因为古生物学家认为它代表的是一个失败的进化试验。
Back in 1995, he extracted it from a 45 million-year-old fossil.
1995年，他从一块四千五百万年前的化石中提取了这种微生物。
The 47 million-year-old fossil is the missing link between man and ape as the creature had opposable thumbs, and fingernails.
这块有着4700万年历史的化石之所以被称为是人与猿之间缺失的环节，是因为它的大拇指与其他手指相对，并且具有了手指甲。
Using conventional drilling methods, it will take three summer seasons in the remote reaches of Antarctica to get to the million-year-old ice that the teams hope lies 3000 metres down.
用传统的钻冰方式，将会花掉三个暑天来获取遥远南极的冰芯，它们预期位于地下3000米深的冰层里。
Two 1.9 million-year-old skeletons found in a South African cave have added a new and intriguing member to the primate family.
在南非一个洞穴中发现的两具距今190万年的骸骨，为灵长类这个大家族增添了一个引人入胜的新成员。
The petite 3.2-million-year-old skeleton called Lucy is one of the most famous and most complete of human ancestors.
这具已经有320万年历史的娇小的原始人体骨架被人们称为Lucy，她是目前为止被发现的最为完整且名声最大的人类祖先之一。
A 71-acre section of 450 million-year-old rock that is believed to be part of the world's oldest coral reef will be preserved and opened to the public, officials announced Tuesday.
美国佛蒙特州地质保护官员日前宣布，将采取措施保护该州境内的一片有着4.5亿年历史的世界最古老珊瑚礁，并在其基础上搭建室外博物馆供公众参观。
Strictly speaking, our next stop on the walk through time should have been a 3.4-million-year-old site called Maka, which had yielded a jaw and some other remains of Australopithecus afarensis.
严格说来，我们穿越时光之旅的下一站将停留在已有340万年的马卡（Maka）遗址，此地曾出土了南方古猿阿法种（Australopithecus afarensis）的一块颌骨以及其他一些遗骸。
He came across the jawbone of a 4.5 million-year-old marsupial.
他偶然发现了一个450万年前的有袋动物的颌骨。
Will the 22-million-year-old Mush flora be essentially the same as Chilga floras?
有着2200万年历史的Mush植物群会和Chilga 植物群本质相同吗？
With the discovery of Ardi (above), 3.2-million-year-old fossil Lucy is no longer the oldest hominid skeleton known.
阿尔迪的发现(上图)，让距今320万年的露西化石不再是已知最早的人类遗骨。
This 65.5-million-year-old layer of Earth separates fossils of the Cretaceous period from those of the Tertiary period.
这个有着6550万年历史的地层分离了白垩纪的化石和第三纪的化石。
The 47 million-year-old remains of a plausible human ancestor, with structural details still intact, can teach us an enormous amount.
作为四千七百万年前的一具很可能是人类远祖的生物遗体，她的结构细节仍然完整无缺，从她身上，我们可以学到许多。
In 2000, scientists made an even more astonishing claim - that they had brought to life a 250 million-year-old bacterium dubbed Bacillus permians.
2000年，科学家们做出了一个更加令人震惊的宣布——他们复活了有2亿5000万年之久的被称为二叠纪杆菌的细菌。
On the northwest shoreline of Kenya's Lake Turkana, at a site known as Kokiselei, researchers previously found both Oldowan and Acheulian tool types in the same 1.76-million-year-old sediments.
在肯尼亚图尔卡纳湖的西北湖岸线上一个叫做Kokiselei的地方，研究人员此前在176万年前同一沉积层里发现了奥尔德沃和阿舍利工具遗迹。
On the northwest shoreline of Kenya's Lake Turkana, at a site known as Kokiselei, researchers previously found both Oldowan and Acheulian tool types in the same 1.76-million-year-old sediments.
在肯尼亚图尔卡纳湖的西北湖岸线上一个叫做Kokiselei的地方，研究人员此前在176万年前同一沉积层里发现了奥尔德沃和阿舍利工具遗迹。
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