Chapter 9 - Chapter 9 Bipedal- walking upright on two legs...

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Chapter 9 Bipedal- walking upright on two legs Continental drift Continents slowly wander around the globe, floating on the denser rock that forms the floor of the deep ocean Pangea- giant, connected 1 st supercontinent Laurasia- northern half Gondwanaland- southern half Important for 2 reasons: 1. oceans serve as barriers that isolate certain species from others, so the position of the continents plays an important role in the evolution of species 2. continental drift is one of the engines of climate change, and climate change has fundamentally influenced human evolution The climate has changed substantially, first becoming warmer and less variable, then cooling, and finally fluctuating widely in temperature Very large continents tend to have severe weather. Methods of Paleontology Fossils - The bones of dead organisms may be preserved long enough for organic material in the bones to be replaced by minerals ( mineralized ) from the surrounding rock. Paleontologists – scientists who recover/interpret fossil remains
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This note was uploaded on 11/17/2010 for the course ANT 301 taught by Professor Reed during the Spring '08 term at University of Texas.

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Chapter 9 - Chapter 9 Bipedal- walking upright on two legs...

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