THEORIES OF EVOLUTIONRoma Nadeem

Nicola EarlDanielle Minnett

Stephen Jay Gould

• Died May 20, 2002 at age 61

• Paleontologist

• Evolutionary Biologist

• Professor at Harvard

• Intellectual Badass

Niles Eldredge

• Works at the American Museum of Natural History

• Went to Columbia University

• In 1972 he worked with Gould to develop the theory of Punctuated Equilibrium

Cladogenesis

The splitting a species into different breeds.

Phyletic Gradualism

• Slow steady divergence of species into breeds

• Slow genetic modification of a population over a long period of time

Punctuated Equilibrium

Evolutionary change happening in what seems to be short bursts according to fossil evidence

WATCH THIS!...or else. Hehe.

Stasis

Isolation

Strong Selection and Rapid Evolution

No Preservation

Reintroduction

Out Competition

Stasis

Key TermsCladogenesis

Phyletic Gradualism

Punctuated Equilibrium

The splitting a species into different breeds.

Slow steady divergence of species into breeds

Evolutionary change that happens in short bursts

Key TermsBreed

Species

Stasis

Isolation

A group within a species

A taxonomic group in which the members can reproduce

The stable state of a species, in which there is little change

The seclusion of a certain amount of a population

Bibliography

• "Evolution 101: The Big Issues." Understanding Evolution. N.p., n.d. Web. 30 May 2010. <http://evolution.berkeley.edu/evosite/evo101/VIIA1aHypotheses.shtml>.

• "Evolution 101: The Big Issues." Understanding Evolution. N.p., n.d. Web. 30 May 2010. <http://evolution.berkeley.edu/evosite/evo101/VIIA1bPunctuated.shtml>.

• "Niles Eldredge - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 30 May 2010. <http://en.wikipedia.org/wiki/Niles_Eldredge>.

• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010.

<http://www.actionbioscience.org/evolution/eldredge.html>.

• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010. <http://www.actionbioscience.org/evolution/eldredge.html>.

• "Species, Speciation and the Environment (ActionBioscience)."ActionBioscience - promoting bioscience literacy. N.p., n.d. Web. 30 May 2010. <http://www.actionbioscience.org/evolution/eldredge.html>.

• "Stephen Jay Gould - Wikipedia, the free encyclopedia." Wikipedia, the free encyclopedia. N.p., n.d. Web. 30 May 2010. <http://en.wikipedia.org/wiki/Step