The document discusses theories of evolution including punctuated equilibrium developed by Stephen Jay Gould and Niles Eldredge. Gould was a paleontologist and evolutionary biologist who died in 2002 at age 61. Eldredge worked at the American Museum of Natural History and collaborated with Gould on punctuated equilibrium, which proposes that evolutionary change occurs in short bursts according to fossil evidence. Other theories discussed include phyletic gradualism, the slow steady divergence of species, and cladogenesis, the splitting of a species into different breeds. Key terms defined are species, stasis, isolation, and breed.

1. THEORIES OF EVOLUTION Roma Nadeem Nicola Earl Danielle Minnett

3. Paleontologist

4. Evolutionary Biologist

5. Professor at Harvard

7. Went to Columbia University

11. Stasis

12. Isolation

13. StrongSelection and Rapid Evolution

14. No Preservation

15. Reintroduction

16. Out Competition

17. Stasis

18. Key Terms Cladogenesis Phyletic Gradualism Punctuated Equilibrium The splitting a speciesintodifferentbreeds. Slow steady divergence of species into breeds Evolutionary change that happens in short bursts

19. Key Terms Breed 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

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