Now the war front approaches, and when Peter’s father enlists, Peter has to move in with his grandpa. Far worse than being forced to leave home is the fact that Pax can’t go. Peter listens to his stern father—as he usually does—and throws Pax’s favorite toy soldier into the woods. When the fox runs to retrieve it, Peter and his dad get back in the car and leave him there—alone. But before Peter makes it through even one night under his grandfather’s roof, regret and duty spur him to action; he packs for a trek to get his best friend back and sneaks into the night. This is the story of Peter, Pax, and their independent struggles to return to one another against all odds. Told from the alternating viewpoints of Peter and Pax.

    She doesn't remember it, but it changed her life forever. The zap gave her genius-level math skills, and ever since, Lucy has been homeschooled. Now, at 12 years old, she's technically ready for college. She just has to pass 1 more test — middle school!Lucy's grandma insists: Go to middle school for 1 year. Make 1 friend. Join 1 activity. And read 1 book (that's not a math textbook!). Lucy's not sure what a girl who does calculus homework for fun can possibly learn in 7th grade. She has everything she needs at home, where nobody can make fun of her rigid routines or her superpowered brain. The equation of Lucy's life has already been solved. Unless there's been a miscalculation?A celebration of friendship, Stacy McAnulty's smart and thoughtful middle-grade debut reminds us all to get out of our comfort zones and embrace what makes us different.

    Sixty-six million years ago, the Earth’s most fearsome creatures vanished. Today they remain one of our planet’s great mysteries. Now The Rise and Fall of the Dinosaurs reveals their extraordinary, 200-million-year-long story as never before.In this captivating narrative (enlivened with more than seventy original illustrations and photographs), Steve Brusatte, a young American paleontologist who has emerged as one of the foremost stars of the field—naming fifteen new species and leading groundbreaking scientific studies and fieldwork—masterfully tells the complete, surprising, and new history of the dinosaurs, drawing on cutting-edge science to dramatically bring to life their lost world and illuminate their enigmatic origins, spectacular flourishing, astonishing diversity, cataclysmic extinction, and startling living legacy. Captivating and revelatory, The Rise and Fall of the Dinosaurs is a book for the ages.Brusatte traces the evolution of dinosaurs from their inauspicious start as small shadow dwellers—themselves the beneficiaries of a mass extinction caused by volcanic eruptions at the beginning of the Triassic period—into the dominant array of species every wide-eyed child memorizes today, T. rex, Triceratops, Brontosaurus, and more. This gifted scientist and writer re-creates the dinosaurs’ peak during the Jurassic and Cretaceous, when thousands of species thrived, and winged and feathered dinosaurs, the prehistoric ancestors of modern birds, emerged. The story continues to the end of the Cretaceous period, when a giant asteroid or comet struck the planet and nearly every dinosaur species (but not all) died out, in the most extraordinary extinction event in earth’s history, one full of lessons for today as we confront a “sixth extinction.”Brusatte also recalls compelling stories from his globe-trotting expeditions during one of the most exciting eras in dinosaur research—which he calls “a new golden age of discovery”—and offers thrilling accounts of some of the remarkable findings he and his colleagues have made, including primitive human-sized tyrannosaurs; monstrous carnivores even larger than T. rex; and paradigm-shifting feathered raptors from China.An electrifying scientific history that unearths the dinosaurs’ epic saga, The Rise and Fall of the Dinosaurs will be a definitive and treasured account for decades to come.

    She knows which tree roots reach down deep to pools of precious water. But now she must learn how to keep herself and her dogs alive. Nandi is the leader of those dogs. She knows they can’t last long without water—and she knows, too, that a boy is coming; a boy with the water song inside him.Musa is that boy. His talent for finding water got him kidnapped by brutal men, yet he's escaped, running away across the thirsty land that nearly claims his life. And so Sarel, Musa, and the dogs come together in what might be their last hope of survival.

    A concise main text highlights how feathers are not just for flying. More curious readers are invited to explore informative sidebars, which underscore specific ways each bird uses its feathers for a variety of practical purposes. A scrapbook design showcases life-size feather illustrations.

    Because she was going to study him, she decided to call him Alex--short for Avian Learning EXperiment. At that time, most scientists thought that the bigger the brain, the smarter the creature; they studied great apes and dolphins. African greys, with their walnut-sized "birdbrains," were pretty much ignored--until Alex. His intelligence surprised everyone, including Irene. He learned to count, add, and subtract; to recognize shapes, sizes, and colors; and to speak, and understand, hundreds of words. These were things no other animal could do. Alex wasn't supposed to have the brainpower to do them, either. But he did them anyway.Accompanied by Meilo So's stunning illustrations, Alex and Irene's story is one of groundbreaking discoveries about animal intelligence, hard work, and the loving bonds of a unique friendship.

    The ship is full of exciting places to explore, but when George ventures into the first class storage cabin, a terrible boom shakes the entire boat. Suddenly, water is everywhere, and George's life changes forever.Lauren Tarshis brings history's most exciting and terrifying events to life in this new fictional series. Readers will be transported by stories of amazing kids and how they survived!

    A wasp that hunts beetles nearly twice its size. The lives of fascinating creatures such as these were unknown until one man introduced them to the world.Meet Jean-Henri Fabre, one of the most important naturalists of all time. As a boy in the French countryside, Henri spent hours watching insects. He dreamed of observing them in a new way: in their own habitats. What he discovered in pursuing that dream was shocking; these small, seemingly insignificant creatures led secret lives—lives of great drama!With its lively, lyrical text and richly detailed illustrations, this intriguing picture-book biography introduces the man who would forever change the way we look at insects, bringing to life the fascinating world of dazzling beetles, ferocious wasps, and other amazing small wonders that exist all around us.

     In Elkhorn Slough, an inlet on the California coast, seagrass grows healthy and strong in the shallow water. This healthy seagrass baffled marine biologist Brent Hughes. The scientist expected this estuary to be overrun with algae, causing the seagrass to die. Why was the seagrass thriving? As Brent investigated, signs pointed to an unexpected player helping to keep the seagrass healthy: sea otters! What do these top predators have to do with an aquatic grass at the opposite end of the food chain? Brent's discovery gave scientists insight into the delicate balance of ecosystems. Follow science in action as Brent conducts the research that led to this major discovery.

    But it's 1941, and things are different this year. Max, the devoted caretaker of an animal preserve, must learn to live with the Nazis who have overtaken this precious land. He must also learn to keep secrets-for there is a girl, Kalinka, who is hiding in the park.Kalinka has lost her home, her family, her belongings-everything but her life. Still, she has gained one small, precious gift: a relationship with the rare wild and wily Przewalski's horses that wander the preserve. Aside from Max, these endangered animals are her only friends-until a Nazi campaign of extermination nearly wipes them out for good.Now Kalinka must set out on a treacherous journey across the frozen Ukrainian forest to save the only two surviving horses-and herself.This sensitive, inspiring tale captures the power of sacrifice and the endurance of the human spirit.

    He protected roots through harsh winters, so plants could be reborn in the spring. He trimmed flowers, spread soil, studied life cycles. And it was in this very place that George’s love of nature sprouted into something so much more—his future.

    So when he becomes the page of Captain John Smith and boards the ship the Susan Constant, bound for the New World, he can't believe his good fortune. He's heard that gold washes ashore with every tide. But beginning with the stormy journey and his first contact with the native people, he realizes that the New World is nothing like he had ever imagined. The lush Virginia shore where they establish the colony of James Town is both beautiful and forbidding, and it s hard to know who's a friend or foe. As he learns the language of the Algonquin Indians and observes Captain Smith's wise diplomacy, Samuel begins to see that he can be whomever he wants to be in this new land.

    It is the powerful story of four African-American female mathematicians at NASA who helped achieve some of the greatest moments in our space program. Now a major motion picture starring Taraji P. Henson, Octavia Spencer, Janelle Monae, Kirsten Dunst, and Kevin Costner.Before John Glenn orbited the earth, or Neil Armstrong walked on the moon, a group of dedicated female mathematicians known as “human computers” used pencils, slide rules, and adding machines to calculate the numbers that would launch rockets, and astronauts, into space.This book brings to life the stories of Dorothy Vaughan, Mary Jackson, Katherine Johnson, and Christine Darden, who lived through the Civil Rights era, the Space Race, the Cold War, and the movement for gender equality, and whose work forever changed the face of NASA and the country.

    Alexander von Humboldt (1769 – 1859) was an intrepid explorer and the most famous scientist of his age. In North America, his name still graces four counties, thirteen towns, a river, parks, bays, lakes, and mountains. His restless life was packed with adventure and discovery, whether he was climbing the highest volcanoes in the world or racing through anthrax-infected Siberia or translating his research into bestselling publications that changed science and thinking. Among Humboldt's most revolutionary ideas was a radical vision of nature, that it is a complex and interconnected global force that does not exist for the use of humankind alone. Now Andrea Wulf brings the man and his achievements back into focus: his daring expeditions and investigation of wild environments around the world and his discoveries of similarities between climate and vegetation zones on different continents. She also discusses his prediction of human-induced climate change, his remarkable ability to fashion poetic narrative out of scientific observation, and his relationships with iconic figures such as Simón Bolívar and Thomas Jefferson. Wulf examines how Humboldt's writings inspired other naturalists and poets such as Darwin, Wordsworth, and Goethe, and she makes the compelling case that it was Humboldt's influence that led John Muir to his ideas of natural preservation and that shaped Thoreau's Walden.With this brilliantly researched and compellingly written book, Andrea Wulf shows the myriad fundamental ways in which Humboldt created our understanding of the natural world, and she champions a renewed interest in this vital and lost player in environmental history and science.

    Bob was a studious planner who wanted to grow up to be a doctor. Joe dreamed of making his fortune in show business and loved magic tricks and problem-solving.When an accident left Bob recovering in a darkened basement, the brothers began experimenting with ultraviolet light and fluorescent paints. Together they invented a whole new kind of color, one that glows with an extra-special intensity--Day-Glo.This cover reproduction is not printed with Day-Glo colors. The actual book, however, is printed using three Day-Glo colors: Saturn Yellow, Fire Orange, and Signal Green.