. . . art reinforces Harris's message that bodies come in all sizes, shapes, and colors—and that each variation is 'perfectly normal.'" —Publishers Weekly (starred review)When young people have questions about sex, real answers can be hard to find. Providing accurate, unbiased answers to nearly every imaginable question, from conception and puberty to birth control and AIDS, It's Perfectly Normal offers young people the information they need—now more than ever—to make responsible decisions and to stay healthy. Already used as a trusted resource in twenty-five countries around the world (and translated into twenty-one languages), It's Perfectly Normal marks its tenth anniversary with a thoroughly updated edition that includes the latest information on such topics as birth control, hepatitis, HIV, and adoption, among others. This definitive new edition also reflects the recent input of parents, teachers, librarians, clergy, scientists, health professionals, and young readers themselves. Back matter includes an index and a note to the reader.

    Millipedes do it. Dinosaurs did it. You do it: I do it. Octopuses don't (and nor do octopi). Spiders might do it: more research is needed. Birds don't do it, but they could if they wanted to. Herrings do it to communicate with each other. At the beginning of 2017, an innocent question on twitter about snakes formed the hashtag #doesitfart and spread pungently across the internet - and major newspapers - as dozens of experts weighed in on which animals do and don't fart, and if they do, how much, how often, what it's made of, what it smells like, and what it's for. Does it Fart? is the result: the fully authoritative, fully illustrated guide to animal flatulence, covering the habits of 80 animals in more detail than you ever knew you needed. What foods make hyena farts smell especially bad? What is a fossa, and does it fart? Why do clams vomit but not fart? What is a fart, anyway? With contributions from dozens of biologists, Does it Fart? is a book that will allow you to shift the blame onto all kinds of unlikely animals for years to come.

    All around the world -- in the sea, in the soil, in the air, and in your body -- there are living things so tiny that millions could fit on an ant's antenna. They're busy doing all sorts of things, from giving you a cold and making yogurt to eroding mountains and helping to make the air we breathe. If you could see them with your eye, you'd find that they all look different, and that they're really good at changing things into something else and at making many more microbes like themselves! From Nicola Davies comes a first exploration for young readers of the world's tiniest living organisms.

    Undersea Glubber! Traveling down from the Sunny Zone to the Dark Zone to the Trench at the bottom, Captain Cat and his crew get up close and personal with the different life forms found at each level of the ocean. Along the way, they meet sharks, jellyfish, dolphins, manatees, whales, and sea cucumbers, to name just a few!

    What's the mystery? The pattern crops up in the most unexpected places. You'll find it in the disk of a sunflower, the skin of a pineapple, and the spiral of a nautilus shell. No one knows how nature came up with the sequence. Sarah C. and Richard P. Campbell introduce the Fibonacci sequence through a series of stunning photographs. Young readers will soon be seeing nature through new eyes, looking for Fibonacci numbers in daisies, pinecones, leaf patterns, seashells, and more.

    Young readers will learn how a British naturalist named Charles Darwin studied nature and developed his now-famous concepts of natural selection and survival of the fittest. And how modern-day science has added to our understanding of the theory of evolution. Can something as complex and wondrous as the natural world be explained by a simple theory? The answer is yes, and now Evolution explains how in a way that makes it easy to understand.

    Along the way, these inspiring people have blazed a trail through history. Anyone who has seen The Sound of Music knows how Maria von Trapp's life began--but what happened after the final scene? Discover what Maria's life was like after fleeing Nazi-occupied Austria for America. With intriguing facts about her life in the nunnery, her romance with Captain von Trapp, their ten children, and their singing careers, this inspiring story reaches beyond The Sound of Music--and reveals the courage and determination of a kind, energetic, and very real woman.

    What are some of the most famous ghost stories? Why do people believe in ghosts? Do most cultures have ghost stories? What are ghost hunters? Find out the answers to these questions and more as Jack and Annie track the facts. Filled with up-to-date information, photos, illustrations, and fun tidbits from Jack and Annie, the Magic Tree House Fact Trackers are the perfect way for kids to find out more about the topics they discovered in their favorite Magic Tree House adventures.

    These trusting, flightless, and beautiful birds—the largest and most unusual parrots on earth—have suffered devastating population loss.Now, on an island refuge with the last of the species, New Zealand’s National Kakapo Recovery Team is working to restore the kakapo population. With the help of fourteen humans who share a single hut and a passion for saving these odd ground-dwelling birds, the kakapo are making a comeback in New Zealand.Follow intrepid animal lovers Sy Montgomery and Nic Bishop on a ten-day excursion to witness the exciting events in the life of the kakapo.

    This level two reader, written in easy-to-grasp text, will help cultivate the geologists of tomorrow!This high-interest, educationally vetted series of beginning readers features the magnificent images of National Geographic, accompanied by texts written by experienced, skilled children's book authors. The inside back cover of the paperback edition is an interactive feature based upon the book. Level 1 books reinforce the content of the book with a kinesthetic learning activity. In Level 2 books readers complete a Cloze letter, or fun fill-in, with vocabulary words.Releases simultaneously in Reinforced Library Binding: 978-1-4263-1039-3 , $13.90/$15.95 CanNational Geographic supports K-12 educators with ELA Common Core Resources.Visit www.natgeoed.org/commoncore for more information. From the Trade Paperback edition.

    With breathtaking full-page images, Nic introduces young readers to the beauty and diversity of these amazing insects, from the shockingly bright blue morpho butterfly to the nearly transparent glasswing butterfly to the mouthless luna moth. The simple, engaging text presents both basic information and fun, quirky facts about the insects' appearance, habits, and life cycle--including a double gatefold spread of a butterfly in flight.

    This empowering, entertaining guide from the bestselling authors of The Confidence Code gives girls the essential yet elusive code to becoming bold, brave, and fearless. It’s a paradox familiar to parents everywhere: girls are achieving like never before, yet they’re consumed with doubt on the inside. Girls worry constantly about how they look, what people think, whether to try out for a sports team or school play, why they aren’t getting “perfect” grades, and how many likes and followers they have online.Katty Kay and Claire Shipman use cutting-edge science and research, as well as proven methods of behavioral change, to reach girls just when they need it the most—the tween and teen years.Packed with graphic novel strips, appealing illustrations, fun lists, quizzes, and challenges, and true stories from tons of real girls, The Confidence Code for Girls teaches girls to embrace risk, deal with failure, and be their most authentic selves.If your daughters loved Gutsy Girl or Rad American Women A-Z, they’ll love this.

    But what will happen when they encounter a group of humans?Humorous and entertaining, Jeffrey Brown’s signature comical touch enlivens the scientific and historical content, including a special paleontologist section that helps to dispel common Neanderthal myths.

    The nation's capital and the largest city in North America is devastated by an apparently incurable disease, cause unknown . . .Jim Murphy describes the illness known as yellow fever and the toll it took on the city's residents, relating the epidemic to the major social and political events of the day and to 18th-century medical beliefs and practices. Drawing on first-hand accounts, Murphy spotlights the heroic role of Philadelphia's free blacks in combating the disease, and the Constitutional crisis that President Washington faced when he was forced to leave the city--and all his papers--while escaping the deadly contagion. The search for the fever's causes and cure, not found for more than a century afterward, provides a suspenseful counterpoint to this riveting true story of a city under siege.

    These myths reveal a broad range of historical and scientific truths that keep kids learning while interacting with their favorite fictional "facts."Chock full of colorful photographs and funny text, this book includes hundreds of fascinating facts and interesting tidbits that prove you can't believe everything you're told. Each busted myth also features an explanation of where it originated, which uncovers often surprising historical significance. So next time someone tells you that the average person accidentally ingests 8 spiders each year--don't tell them that if they believe that they are as dumb as an ox--because oxen are actually quite smart.