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Quiz Show: Vlogbrothers Face-Off: Hank v. John!
Welcome back to SciShow Quiz Show! In this episode Hank will be competing with older brother John... -
Emily and Hank Meet a Blue-Tongued Skink: SciShow Talk Show Episode 5
Emily Graslie of the Brain Scoop is back again with some more skulls to stump Hank, and Jessi fro...