the First Earthlings

摘要

For today's civilized world,with its dotcoms, sitcoms. ATMs,and ATVs.the first 3.5 billion years of life on Earth are a bit of an emharrassment.It was only a few hundred million years ago that trilobites prowled the seas, More primitive life subscribed to two or three basic lifestyles: algal mat spineless worm, or bacterial blob. Before that, in the Archean Eon more than 2. 5 billion years ago-well, that kind of life is what Lysol is for.