In honor of Earth Day on Sunday, learn a little bit about some of our creepy, crawling neighbors on Planet Earth with Amy Stewart‘s Wicked Bugs books. It’s fun for all ages — so we’re offering up one copy of Amy’s original, New York Times bestselling book, Wicked Bugs: The Louse That Conquered Napoleon’s Army & Other Diabolical Insects for grown-up readers and one copy of Wicked Bugs (Young Readers Edition): The Meanest, Deadliest, Grossest Bugs on Earth to one lucky winner. Two books, one winner. Fun for the whole family. Read on to learn more about these worthy, earthy books and fill out the form below for a chance to win the two books.

•Wicked Bugs: The Louse That Conquered Napoleon’s Army & Other Diabolical Insects: In this darkly comical look at the sinister side of our relationship with the natural world, Amy Stewart has tracked down more than one hundred of our worst entomological foes—creatures that infest, infect, and generally wreak havoc on human affairs. From the world’s most painful hornet, to the flies that transmit deadly diseases, to millipedes that stop traffic, to the “bookworms” that devour libraries, to the Japanese beetles munching on your roses, Wicked Bugs delves into the extraordinary powers of six- and eight-legged creatures. With wit, style, and exacting research, Stewart has uncovered the most terrifying and titillating stories of bugs gone wild.

It’s an A to Z of insect enemies, interspersed with sections that explore bugs with unusual sex lives (“She’s Just Not That Into You”), creatures lurking in the cupboard (“Fear No Weevil”), insects eating your tomatoes (“Gardener’s Dirty Dozen”), and phobias that feed our (sometimes) irrational responses to bugs (“Have No Fear”). Intricate and strangely beautiful etchings and drawings by Briony Morrow-Cribbs capture diabolical bugs of all shapes and sizes in this mixture of history, science, murder, and intrigue that begins—but doesn’t end—in your own backyard.

•Wicked Bugs (Young Readers Edition, ages 8-12): Did you know there are zombie bugs that not only eat other bugs but also inhabit and control their bodies? There’s even a wasp that delivers a perfectly-placed sting in a cockroach’s brain and then leads the roach around by its antennae — like a dog on a leash. Scorpions glow in ultraviolet light. Lots of bugs dine on corpses. And if you want to know how much it hurts to get stung by a bullet ant (hint: it really, really hurts), you can consult the Schmidt Sting Pain Index. It ranks the pain produced by ants and other stinging creatures. How does it work? Dr. Schmidt, the scientist who created it, voluntarily subjected himself to the stings of 150 species.

Organized into thematic categories (Everyday Dangers, Unwelcome Invaders, Destructive Pests, and Terrible Threats) and featuring full-color illustrations, also by Briony Morrow-Cribbs, Wicked Bugs is an educational and creepy-cool guide to the worst of the worst of insects, arachnids, and other arthropods.

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