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Titlebook: Living Earth; A Short History of L E. G. Nisbet Book 1991 E. G. Nisbet 1991 Co-Evolution.ecosystem.environment.evolution.plants.science

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樓主: miserly
21#
發(fā)表于 2025-3-25 06:27:21 | 只看該作者
The beginning of lifemplex array of chemicals. To make life accidentally would need an extraordinary and unlikely series of events. The biologist, Francis Crick, in his book ., pointed out that the chance of life beginning on Earth is so remote that one must demand a miracle, whether it be the deliberate seeding of the
22#
發(fā)表于 2025-3-25 09:35:48 | 只看該作者
The Archaean planetname is taken from the Greek source to describe the beginning of the geological record and the pervasive influence of life on Earth. As yet we have no agreed definition of when the Hadean (the accretionary period), ended and the Archaean began. We could use the beginning of the geological record, at
23#
發(fā)表于 2025-3-25 13:54:54 | 只看該作者
24#
發(fā)表于 2025-3-25 19:34:19 | 只看該作者
The surface of the Proterozoic Earth time of great but shadowy events. The dark beginnings were closing: the world was starting to take its modern shape. In the late Archaean, we see the biosphere in its medieval morning, dispelling the Dark Ages. Then, at some time in the Proterozoic the bacteria give rise to the eukaryotes, with the
25#
發(fā)表于 2025-3-25 20:43:20 | 只看該作者
26#
發(fā)表于 2025-3-26 03:57:21 | 只看該作者
The Early Palaeozoic explosion and its aftermathnoeuvered across Europe and the world as chessmen across a chessboard. War was a polite, cruel business: the Huns and the Vandals had been forgotten. The victories of 1759, which set out the map of the modern world, were won by small forces in tiny decisive battles. Later, after the French Revolutio
27#
發(fā)表于 2025-3-26 07:33:29 | 只看該作者
28#
發(fā)表于 2025-3-26 10:17:57 | 只看該作者
29#
發(fā)表于 2025-3-26 16:33:11 | 只看該作者
30#
發(fā)表于 2025-3-26 20:28:21 | 只看該作者
Humanitying of these precursors is the fossil of a single tooth that appears to have belonged to a very primitive representative of the line of vertebrates called primates. Humans are primates. The animal that owned the tooth is appropriately called ., after Purgatory Hill in the Hell Creek Formation.
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