We have some questions about sleep: It’s ok to stay up late, right? Is it possible to control your dreams? Do all animals sleep? Why do we need to sleep anyway?

The questions asked and answered in this episode include: What is harmony exactly? What does it take to be a great rapper? How does sound travel?

Among the questions answered in this episode: Is it better to be taller or shorter? Do animals grow the same way that humans do? What superpowers does your brain have before it’s done growing?

In this episode, we ask: Why do some foods taste better to adults than kids? And what happens to food once you’re done tasting it?