In a genetic condition called chimerism, DNA from someone else (an unborn twin, an organ donor, or even your own baby) is at work in your body. Learn how it works in this episode of BrainStuff. Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>See <a href="https://omnystudio.com/listener">omnystudio.com/listener</a> for privacy information.

Does Earth's Crust Have Its Own Tides?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.