Mass Extinction

This video highlights a team of scientists who work on reconstructing the mass extinction that occurred 250 million years ago, the end of the Permian Period, and wiped out the majority of life on our planet, resetting the evolution of life. Clues suggest that deadly bacteria might have set off a chemical chain reaction that poisoned the Permian seas and atmosphere.

Go To:

NOVA scienceNOW
PBS Online
Video length: 13:16 minutes.

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Teaching Tips

This video comes in a longer form, 13:16 minutes, and a shorter form, 4:47 minutes http://www.teachersdomain.org/asset/oer09_vid_massextinct/

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