Fossil footprints bring animals back to life, then.

化石足迹使得动物“复活“。

They are bigger than any other fossil cats.

要比其它化石猫科动物都大。

He is a fossil marine mammals expert at the Smithsonian National Museum of Natural History.

他是史密森国家自然历史博物馆的海洋哺乳动物化石专家。

Scientists have unearthed the fossil of a mammal which lived 125 million years ago.

科家出土了生活1.25亿年前只哺乳动物的化石。

On a global scale, medium-sized carnivore fossils are slightly less common than small and large.

全球范围内，中型食肉动物化石比小型和大型食肉动物化石略少。

The sedimentary rocks of the Badlands contain one of the world’s largest and most complete collection of mammal fossils.

荒地的沉积岩中含有世界上大、完整的哺乳动物化石。

Ichnofossils are any track or trail, left behind by an animal.

遗迹化石是动物留下的任何足迹或小径。

For decades, speculation reigned about where all these seemingly-different fossil animals fit in the family tree of dinosaurs.

几十年来，人们猜测所有这些看似不同的化石动物恐龙家谱中的位置。

A piece of history has been found thanks to a boy tripping on a rare, 1.2-million-year-old animal fossil.

块拥有 120 万年历史的稀有动物化石将个小男孩绊倒了，人类的段历史由此被揭晓。

5% of the fossils of terrestrial vertebrates.

陆生脊椎动物化石的 5%。

Douglas Erwin is with the Smithsonian Institution. He said he is sure the fossils are from an animal.

道格拉斯 欧文（Douglas Erwin）史密森尼会工作。他表示自己很确定这种化石来自于动物。

In fact, their fossilized conga lines represent some of the first evidence of animal group behaviour.

事实上，他们的康茄线化石代表了动物群体行为的些初证据。

But scientists have uncovered fossil evidence of an animal that produces sperm ten times longer than its body.

但是科家们发现了种动物的化石证据，这种动物产生的精子比它的身体长十倍。

NARRATOR: Anatomists Farish Jenkins and Steve Gatesy are specialists in the function of limbs and joints in fossil animals.

旁白：解剖家法里什·詹金斯和史蒂夫·盖茨是化石动物四肢和关节功能方面的专家。

Thousands of brachiopod fossils at the site had been clustered in sediment once covered by the sea.

该遗址的数千块腕足动物化石曾聚集曾经被海水覆盖的沉积物中。

That means big animals can be overrepresented at fossil sites.

这意味着大型动物化石遗址中的数量可能过多。

Druckenmiller: We don't actually find fossils of cold-blooded land-living animals alongside our dinosaurs.

德鲁肯米勒：我们实际上并没有恐龙旁边找到冷血陆生动物的化石。

However, an analysis of the fossil also revealed some features which resemble those of anthropoids like monkeys and apes, including man.

然而，分析化石发现这种动物的些特征和类人猿（如猴子、猩猩，包括人类）相似。

But then some researchers discovered that the fossil showed the many limbs of an animal and began to study it further.

但后来些研究人员发现，这块化石显示了动物的许多腕足，并开始对其进行进步研究。

He was even nicknamed " Mr. Mammoth" because he gathered fossils of those elephant-like animals of long ago.

他甚至被昵称为“猛犸象先生” ，因为他收集了很久以前那些像大象样的动物的化石。