Squabbles big and small: A dining room turns two besties into lifelong enemies; a researcher embraces the panda craze; and why some dinosaur skulls were built to take a beating.

A quick update from Tony about the show.

Tales of deception and trickery: A sneaky orchid seeks sexually frustrated pollinator; a battle fought by decoys; and a gender-bending zombie invasion of the Chesapeake Bay.

A 1921 riot destroyed almost 40 blocks of a wealthy black neighborhood in North Tulsa, Oklahoma. No one knows how many people died, no one was ever convicted and no one really talked about it until a decade ago. This is the story of the Tulsa Race Massacre and why it's important that you know it.

The payoff is all in the delivery: Sending mail via cruise missile; preparing a strong-willed orangutan for primate parenthood; and failing to land a joke from the "gag file" of Phyllis Diller.

Technology's grip on us: The 4-1-1 on what's behind your selfie; an artist's computer simulation shows humans aren't as unique as we think; and how the invention of standardized time made America tick.

Sidedoor, a new podcast from the Smithsonian, is launching October 26th, 2016. Start subscribing now on iTunes!