Early Life 在线电子书 图书标签: 考古 生物
发表于2025-02-18
Early Life 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2025
From the initial signs of life in the Precambrian period to the end of the Cambrian period about 488 million years ago, Early Life explores the development of early life that culminated in one of the most extraordinary periods in the evolution of life on Earth. Characterized as a "biological big bang," the Cambrian period was a relatively short span of time during which nearly all basic forms of animal life that still exist first appear in the fossil record of the ancient oceans.
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Early Life 在线电子书 pdf 下载 txt下载 epub 下载 mobi 下载 2025