♪ Good morning to a brand new day ♪ ♪ Time to learn and games to play ♪ ♪ Learning things is so much fun ♪ ♪ Learning is good for everyone ♪ (guitar music) (upbeat music) - Hello, little learners.

For Cow Week, NPR's Wade Goodwyn blows the lid off of a children's nursery rhyme. He talks to Modern Farmer correspondent Tyler LeBlanc about... Hey-Diddle, A Fiddle And A Moon-Jumping Cow? NPR Moos ...

If you've ever wondered about the origins of the phrase "How now, brown cow," we can't help you. But just for kicks, we wrote a game in which every answer rhymes with "cow." How now, kung pao? Plus, ...