Do you know what a pirate's favorite letter is? Join Ms. Randi House as she talks about those bossy R control vowels. Rise and Shine is available to stream on pbs.org and the free PBS App, available ...

What’s in a swear? The world’s filthiest words typically refer to something vulgar or taboo, for one. But there’s something else swears across the world’s languages have in common. They’re all missing ...