Brain Candy

JULIE BEER is a long-standing contributor to National Geographic Kids. Her works include Penguins vs. Puffins, Piglets vs. Pugs, multiple books in the hit Weird But True! and 5,000 Awesome Facts series, This or That? 4, Get Outside Guide, and Ultimate Explorer Field Guide: Birds, among others. She currently lives in northern California with her two daughters, a dog, a cat, and a guinea pig.

NATIONAL GEOGRAPHIC KIDS inspires young adventurers to explore the world through its award-winning books, magazines, website, television, apps, games, toys, and events. It is the only major kids brand with a world-class scientific organization at its core.