Wednesday, April 22, 2009

Dinousaur Extinction



What exactly made dinousaurs go extinct?

One of the theories and perhaps the most understandable and accepted in today's science is the striking of an asteroid 10 kilometers wide just off the coast of the Yucatan Peninsula in Mexico.

But was it just the impact that changed the world forever? Well, according to many scientists, the impact caused an excessive amount of dense clouds of dust that blocked the sun's rays from reaching the surface of the Earth. This environment lasted for months and it was almost impossible to live under these conditions which explains the extinction of not just dinosaurs, but of many plants and other animals living at the time.

Evidence: There is a 150 kilometer wide crater just off the Yucatan Peninsula in Mexico. Scientists say that this impact crater was created about 65 million years ago, the time dinosaurs dissapeared.

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