So when spacecraft are sent to other planets, scientists will look for layers of gypsum in hopes of finding similar fossils.

VOA: special.2010.05.25

I don't see dinosaurs, but of course they leave traces behind in fossils.

我没见过恐龙，但是无疑的,他们留下了化石这样的痕迹。

耶鲁公开课 - 死亡课程节选

She never became famous for her discoveries because she often sold her fossils to get money to support her family.

VOA: special.2009.05.13

University of California biologist Bill Schopf studies ancient fossils and the dirt they are found in on earth.

VOA: special.2010.05.25

The fossils are from creatures as small as insects to those that were bigger than a modern elephant.

VOA: special.2010.04.07

Research has shown that these possible fossils were not formed while the rock was here on Earth.

VOA: special.2010.07.28

Fossils are plants or parts of animals that have been saved in rocks for millions of years.

VOA: special.2009.05.13

The researchers used the fossils of a dinosaur that lived one hundred twenty-five million years ago.

VOA: special.2010.03.16

Mary and her father collected fossils in their village on the southern coast of Great Britain.

VOA: special.2009.05.13

Alfred Wegener said the mountains and fossils were evidence that all the land on Earth was united at some time in the distant past.

VOA: special.2010.01.12

The scientists say they hope more fossils will be found that support their beliefs.

VOA: special.2009.09.01

Visitors can watch the scientists clean,examine,repair and identify fossils that are still being discovered.

VOA: special.2010.04.07

Researchers say ninety percent of the fossils found are those of meat-eating animals.

VOA: special.2010.04.07

They have found more than forty thousand fossils in Pit Ninety-One.

VOA: special.2010.04.07

It removes the oily material, leaving behind hundreds of fossils.

VOA: special.2010.04.07

This area turned out to be very rich in fossils.

VOA: special.2010.04.07

So we have only their bones, or fossils,to study.

VOA: special.2010.06.04

The U.S.state of Colorado is an ideal destination for anyone interested in hunting for dinosaur fossils.

VOA: standard.2009.12.08