In this episode of Tiny Show and Tell Us, we break down the complicated science of tides and why some places have massive tidal swings while others do not. We also cover the role of ancient viral DNA in our genomes, and how it seems to be making us less responsive to cancer treatments like chemotherapy.

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Here's the tides video George mentioned. The rest of the references and transcript for this episode can be found at acs.org/tinymatters.