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Ernst Mayr
Evolutionary Biologist
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Description
Ernst Walter Mayr was one of the 20th century's leading evolutionary biologists. He was also a renowned taxonomist, tropical explorer, ornithologist, and historian of science. His work contributed to the conceptual revolution that led to the modern evolutionary synthesis of Mendelian genetics, systematics, and Darwinian evolution, and to the development of the biological species concept. Although Charles Darwin and others posited that multiple species could evolve from a single common ancestor, the mechanism by which this occurred was not understood, creating the species problem. Ernst Mayr approached the problem with a new definition for species. In his book Systematics and the Origin of Species he wrote that a species is not just a group of morphologically similar individuals, but a group that can breed only among themselves, excluding all others. When populations within a species become isolated by geography, feeding strategy, mate selection, or other means, they may start to differ from other populations through genetic drift and natural selection, and over time may evolve into new species. 
Born
July 5th, 1904 in Kempten  /  Died:   Feb 3rd, 2005
Last Changes
2005/02/05
The celebrity has been marked as passed away
2004/08/31
The listing has been merged with another listing (probably a duplicate listing)
2008/01/04
New Response (OLD!) (Success): Sent nice letter and a couple of small photos to t..
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This celebrity has passed away
Date: Feb 3rd, 2005
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