Early Life: Evolution on the Precambrian Earth

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Jones & Bartlett Learning, 2002 - Всего страниц: 168
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Early Life: Evolution on the PreCambrian Earth, Second Edition offers an informative and compelling analysis of microbial evolution, often overlooked as the opening chapter of life's history. With this long-awaited new edition, Lynn Margulis and Michael Dolan integrate new discoveries from the past two decades, such as the enormous contribution of molecular biology, especially the accumulation of protein and DNA sequence information upon which the Woese three-domain system is based. Yet the prokaryotic-eukaryotic distinction remains the largest evolutionary discontinuity in life on Earth. Are the well-formed filaments found so recently in the Warrawoona Series of northwestern Australia really evidence of the oldest life on the planet?

Do the fossils found in the great Gunflint Iron Formation of Ontario tell that bacteria were instrumental in the accumulation of the most important iron reserves in the world?

These questions are not solved here, but they are raised for students, scientists, and general readers interested in the most basic evolution and its consequences. No special scientific background is required of the reader, only a lively interest.

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Содержание

Life without Oxygen
25
The First Oxygen Producers
59
Stromatolites
66
A Modern Environment
73
The Evolution of Sex
109
The Modern Era
129
Glossary
147
Index
159
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Об авторе (2002)

Lynn Margulis was born in Chicago, Illinois on March 5, 1938. She graduated from the University of Chicago at the age of 18. She received a master's degree in genetics and zoology from the University of Wisconsin and a Ph.D. in genetics from the University of California, Berkeley. She taught for 22 years at Boston University before joining the faculty at the University of Massachusetts, Amherst in 1988. She was best known for her theory of species evolution by symbiogensis. The manuscript in which she first presented her findings was published in 1967 by the Journal of Theoretical Biology. An expanded version, with additional evidence to support the theory, became her first book entitled Origin of Eukaryotic Cells. Her other works include Symbiosis in Cell Evolution, Luminous Fish: Tales of Science and Love, Dazzle Gradually: Reflections on the Nature of Nature, and Mind, Life, and Universe: Conversations with Great Scientists of Our Time. She died five days after suffering a hemorrhagic stroke on November 22, 2011 at the age of 73.

University of Massachusetts, Amherst, Massachusetts

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