Hints: snapshots Solnhofen lagoon scavengers --archaeopteryx pelvis

They make perfect roof tiles, but these tiles occasionally reveal something extraordinary. Perfect snapshots from 115 million years ago, back then, Solnhofen was part of a very still and salty tropical lagoon. No scavengers could survive in these toxic waters, but anything that died was left undisturbed.
One casualty in particular has made Solnhofen world famous--archaeopteryx. Although it had the head and pelvis of a reptile, the long forelimbs suggest something altogether different. They'recov ered in feathers. This was part reptile, part bird. Archaeopteryx marks one of the major turning points in evolutionary history. From these beginnings, emerged the 9,000 species of birds that fill the skies today.

這篇材料你能聽出多少?點(diǎn)擊這里做聽寫,提高外語水平>>