Many scientists blame fossil fuel emissions for contributing to warmer temperatures.

许多科学家指责化燃料排放导致气温升高。

Scientists already use fossilized shells to reveal details of the Earth's ancient climate.

科学家已用化贝壳揭示了球气候细节。

The dawn of speech is one of the great puzzles of evolution because there's no fossil record of verbal communication for scientists to look back through.

语言黎明是进化史上巨大谜题之，因为并没有记录语言交流化供科学家来回溯过去。

Both snakes lived during exceptionally warm climate periods, said Cambridge University fossil scientist, Jason Head, who was not involved in the study.

剑桥大学化科学家杰森·海德没有参与这项研究，他表示，这两条蛇都生活在异常温暖气候时期。

The fossils helped scientists understand the evolution of a bone structure that helps pandas eat bamboo called a false thumb.

这些化帮助科学家了解了辅助大熊猫吃竹子骨骼结构进化，这骨骼结构叫做伪拇指。

Fifty years ago, most paleontologists thought that fossil footprints, which we also call trace fossils, were rare and unimportant.

50 多年前，很多生物学家认为化足迹，也名叫“遗迹化”，是罕见且无价值。

Since then, many scientists who study fossils, or paleontologists, have investigated how all these creatures could have died together.

从那时起，许多研究化科学家或生物学家研究了所有这些生物是如何起死亡。

Paleontologists study fossils to learn about the history of life on Earth.

生物学家研究化以了解球生命历史。

Anthropologists, evolutionary biologists found from the fossil record.

人类学家和进化生物学家从化记录中发现。

These changes looked strikingly similar to the changes scientists see in the fossil record, as ancient species started making the transition to land.

这些变化看起来与科学家在化记录中看到物开始向陆过渡时变化惊人相似。

So to answer Ernie's question, I started by looking up the scientists who studied this special one-of-a-kind dino butt fossil.

所以要回答Ernie问题，我首先查阅了研究这个独无二恐龙臀部化科学家们。

Using a technique called Bone Histology where scientists slice up fossils into very thin sections, we can look at the internal structures found in fossils.

使用称为骨骼组织学技术，科学家将化切成非常薄部分，我们可以查看化中发现内部结构。

With these fossils, scientists are trying to determine how small, furry land animals evolved into the dozens of species of whales we know today.

有了这些化，科学家们正试图确定小型、毛茸茸陆动物是如何进化成我们今天所知道数十鲸鱼。