biology - Asha Little-Wilson December 1,2014 Professor Wray...

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Asha Little-Wilson December 1,2014 Professor Wray movie summary The movie The Sixth Extinction was a documentary that investigated why 27,000 species disappear each year, and who is responsible for this massive number of species lost per year. The document talks about five great extinction,but three in particular had the biggest impact of the number of species to where there were little to none at all,causing the world to have to repopulate which was difficult due to the low number of bio diversity. The first extinction took place,440 million years ago causing more then half of the species to disappear. 200 million years later, the most deadly excintction accured. 54% of the families and 96% of the marine species dead out distoying the biodiversity in the oceans. 65 million years ago the most known extinction occurred the dinasour excintction. Biologist believed that the reason for these
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