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So, here we are 4,000 million years later
on 28 May 2004
British paleontologist Richard Fortey has written a marvelously concise and erudite historical synopsis of terrestrial life from around 4,000 million years ago, when meteors seeded the planet with the elements, most importantly carbon, that allowed for the evolution of organic molecules, to around 25,000 years ago, when Cro-Magnon Homo sapiens founded interior decorating by painting animals on the walls of his cave living-rooms. Fortey's account necessarily leaves off with the beginning of recorded history. (Blessedly, the life forms "Benifer" and Michael Jackson fail to appear in the narrative even once.)
The author hits the high points, including the evolution of single cells, the formation of bacterial colonies, the initiation of chlorophyll-based photosynthesis (that ultimately charged the atmosphere with oxygen), the specialization of cells into tissues, the population of the seas, the advance onto land, the greening of the earth, the separation of ancient Pangaea into today's separate continents, the Age of Dinosaurs, the advent of live-birth from wombs, the ascendancy of mammals, and finally the evolution of Man. For me, the most interesting chapter was on the apocalyptic cataclysm which ended the Age of Dinosaurs, i.e. the asteroid which apparently slammed into the Mexican Yucatan Peninsula creating the Chicxulub Crater. The volume also includes several photo sections that provide an adequate visual summary of the text.
The time spans of Fortey's tale are almost beyond mental grasp. For instance, at one point the author states that tool making by hominids began about 2.5 million years ago. Yet the style of the tools, the "technology" if you will, then remained virtually unchanged for the next million years. After witnessing the dizzying pace of technological advancement just during the span of my own life, this stagnation for such an incomprehensible length of time is mind-boggling.
I wish I had but a fraction of Fortey's knowledge of our world. LIFE should be required reading in every high school science program.