Master of What - The Cambrian Explosion

Well we probably won't get a great trade in value on our time machine after putting so many miles, or rather years, on it. But at least we got to the bottom of why there was not very much life and then suddenly tons of life. We also figure out how long Andrew can hold his breath for, tune in to find out!

Chengjiang Biota Link:
https://en.wikipedia.org/wiki/Maotianshan_Shales