We found fossils that old that bear remarkable resemblance to the tree.(我們發(fā)現(xiàn)了那么古老的化石，它與那棵樹有驚人的相似之處。)

By fossils, we mean traces of prehistoric animals such as bones, which become mineralized, or impressions of bones or organs that are left in stone.(我們所說的化石，指的是史前動物的遺跡，如已礦化的骨頭，或留在石頭上的骨頭或器官的印痕。)

Dinosaur fossils have been found in postures that we now believe to indicate brooding behavior, that is, sitting on the eggs until they hatch.(我們現(xiàn)在認為恐龍化石被發(fā)現(xiàn)時的姿勢表明孵蛋的行為，也就是說，坐在蛋上直到蛋孵化。)

Detailed field studies of thick rock formations containing fossils provide the best potential tests of the competing theories.(對含有化石的厚巖層的詳細現(xiàn)場研究為相互競爭的理論提供了最佳的潛在檢驗。)

The Ediacara fossil formation, which contains the oldest known animal fossils, consists exclusively of soft-bodied forms.(包含已知最古老的動物化石的埃迪卡拉化石組，只含有軟體動物。)

Fossils show how the nostrils of ancestral whales moved from the tip of the snout to the top of the head.(化石展現(xiàn)了鯨魚的鼻孔是如何一步步地從它們祖先長鼻子的末端跑到頭頂上去的。)

They found fossils of microscopic marine plants which suggest that the region was once open ocean, not solid ice.(他們發(fā)現(xiàn)了微型海洋植物的化石，表明該地區(qū)曾經(jīng)是開放的海洋，而不是堅固的冰層。)

Interestingly, there are clams and snail shells; but, no fossils of fish.(有趣的是，那里有蛤蜊和蝸牛殼，但是，沒有魚的化石。)

Fossils are thus identifying markers for particular periods in Earth's history.(因此，化石是識別地球歷史上特定時期的標志。)

Down one floor is a large collection of fossils found in the Kansas area.(下面一層是在堪薩斯地區(qū)發(fā)現(xiàn)的大量化石。)