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2003 – LCH.Clearnet Group is formed following the merger of the London Clearing House and Clearnet SA. New ownership comprises: Clearing Members 45.1%, Exchanges 45.1%, Euroclear 9.8%. 2007 – LCH.Clearnet and Euronext announce repurchase by LCH.Clearnet of shares held by Euronext to more closely align customer and shareholder interests.
The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago (abbreviated as Ga, for gigaannum) and evidence suggests that life emerged prior to 3.7 Ga. [1] [2] [3] The similarities among all known present-day species indicate that they have diverged through the ...
Life: A Natural History of the First Four Billion Years of Life on Earth is a book about natural history by British paleontologist Richard A. Fortey. It was originally published in hardcover in Great Britain by HarperCollins Publishers, under the title Life: An Unauthorised Biography. Fortey used this book to explain how life has evolved over ...
The earliest evidence for life on Earth includes: 3.8 billion-year-old biogenic hematite in a banded iron formation of the Nuvvuagittuq Greenstone Belt in Canada; [30] graphite in 3.7 billion-year-old metasedimentary rocks in western Greenland; [31] and microbial mat fossils in 3.48 billion-year-old sandstone in Western Australia.
The key to life history theory is that there are limited resources available, and focusing on only a few life history characteristics is necessary. Examples of some major life history characteristics include: Age at first reproductive event; Reproductive lifespan and ageing; Number and size of offspring
The Origin of Life. The Weidenfeld and Nicolson Natural History. Translation of Oparin by Ann Synge. London: Weidenfeld & Nicolson. LCCN 67098482. Bondeson, Jan (1999). The Feejee Mermaid and Other Essays in Natural and Unnatural History. Ithaca, NY: Cornell University Press. ISBN 978-0-8014-3609-3. LCCN 98038295. Bryson, Bill (2004).
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Pre-cell – Hypothetical life before complete cells; Proto-metabolism – Chemical reactions which turn into modern metabolism; Timeline of the evolutionary history of life; Urmetazoan – Hypothetical last common ancestor of all animals; Y-chromosomal Adam – Patrilineal most recent common ancestor of all living humans