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This is where you can watch a number of different videos to help you understand concepts talked about in class.This is the talk about the rat that was paralyzed and then was able to walk.This is the video about chemicals that act life like.In his lab, Martin Hanczyc makes "protocells," experimental blobs of chemicals that behave like living cells. His work demonstrates how life might have first occurred on Earth ... and perhaps elsewhere too.Heart Diseases: