For the next few episodes, we’re featuring the Smithsonian’s new series, Sidedoor, about where science, art, history, and humanity unexpectedly overlap — just like in their museums.

In this episode: two besties turn into lifelong enemies over a dining room; a researcher embraces the panda craze; and why some dinosaur skulls were built to take a beating.

For even more from Sidedoor, subscribe in iTunes or wherever you get your podcasts.

Music credits under backannounce: “Walking Barefoot On Grass” by Kai Engel.