Life Begins: Crash Course Big History #4

In which Hank and John Green teach you about life on Earth. They won't be giving advice on how life should be lived, because this is a history series. Instead, they'll teach you about the earliest forms of life on Earth, and some of the ways that they developed into the types of life we know, love, and sometimes don't love so much (I'm looking at you here, opossums). You'll learn about prokaryotes, eukaryotes, panspermia, reproduction, a little about DNA, and even a thing or two about trees. Maybe.

Crash Course Biology
DNA Structure and Replication Episode: https://www.youtube.com/watch?v=8kK2zwjRV0M

DNA Transcription and Translation: https://www.youtube.com/watch?v=itsb2SqR-R0

Learn more at http://www.bighistoryproject.com