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Evolutionary Scientist

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Dylan Butterfield

on 14 February 2014

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Transcript of Evolutionary Scientist

Ernst Mayr
Born: July 5, 1904, Kempten Germany
Died: February 3, 2005, Bedford, MA
Mayr was one of the 20th century's leading evolutionary biologist.

Stephen Gould
Born: September 10, 1941, New York City
Died: May 20, 2002, New York City
Gould was an american paleontologist, evolutionary biologist, and science historian.

Herbert Spencer
Born: April 27, 1820, Derby, United Kingdom
Died:December 8, 1903, Brighton, United Kingdom
Spencer was an English philosopher, anthropologist, biologist, and sociologist.
Theodosius Dobzhansky
Born: January 24, 1900, Nemyriv, Ukraine
Died: December 18th, 1975, San Jacinto, CA
Dobzhansky was a prominent geneticist and evolutionary biologist.
Evolutionary Scientist
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One of his greatest contributions to science is the theory of punctuated equilibrium, which was developed with Niles Eldredge in 1972.
The theory proposes that evolution happens in rare instances of rapid branching evolutionary change in between long periods of stability. This theory contrasts James Hutton's theory of gradualism.
Today Beliefs
Goulds contributed to evolutionary developmental biology and has received wide praise for his books. In evolutionary theory he opposed strict selectionism, sociobiology as applied to humans, and evolutionary psychology. Due to advancements in science, Gould's theories have benefited from scientific evidence not available to other evolutionary theorist.
He developed the all- embracing conception of evolution as the progressive development of the physical world, biological organisms, the human mind and human culture and societies. He believed that the evolutionary mechanism was also necessary to explain higher evolution, especially the social development of humanity.
Today's Belief
A lot of his work was compared to Darwin's concepts. Spencer's theory addresses how life could have started, and provides supporting information to other scientists' theories.
He published his own book in 1937 about the genetics and origin of a species. He developed the idea of spectaition, which states that both genetic mutations and natural selection are responsible for creating evolutionary change with in a species.

He tackled the problem of how
multiple species could arise from a common ancestor. He felt that the species is the keystone to evolution. When a species is separated from its group this isolation will eventually create a new species and this is what leads to evolutionary change.
Today's Beliefs
Today's Beliefs
His work in the book "The Modern Synthesis" brought together many scientist and their beliefs to lay the foundation for future research.
He integrated Mendel's theory of heredity with Darwin's theory of evolution and natural selection. Alfred Wegener's theory of continental drift and the fossil evidence that he collected supports Mayr's theory.
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