They did such a good job that, by 1926, no gray wolf packs were left in the park. Over the following decades, virtually every other part of the park's ecosystem was affected by the loss of the wolves --- from the animals who were their prey, to the plants that were the food for that prey, to the streams that were sheltered by those plants --- and the landscape was in distress. So, starting in 1995, in an attempt to reverse course, the government reintroduced gray wolves to the park. Over time, animal populations stabilized, waterways were restored and a healthy ecosystem was recreated across the land. It's a striking transformation, and a fascinating tale of life's complicated interdependencies.Jude Isabella's thoroughly researched, expert-reviewed text and Kim Smith's beautiful nature art bring science to life in this captivating story of renewal. Readers will recognize just how complex an ecosystem is and learn about the surprising interconnectedness of its members. Biodiversity, ecosystems, the food chain, habitats, needs of living things and the importance of human stewardship of the environment are all covered through this real-life example, offering direct links to earth and life science curriculums. Food web infographics help reinforce the information. A glossary and index add to the book's usefulness.

    Charles Darwin's theory of common descent no longer needs to be a scientific mystery to inquisitive young readers. Meet Grandmother Fish.Told in an engaging call and response text where a child can wiggle like a fish or hoot like an ape and brought to life by vibrant artwork, Grandmother Fish takes children and adults through the history of life on our planet and explains how we are all connected.The book also includes comprehensive backmatter, including:- An elaborate illustration of the evolutionary tree of life- Helpful science notes for parents- How to explain natural selection to a child

    For hundreds of years, people have left behind family, friends, and all they know in hope of a better life. This book presents five true stories about young people who lived through the harrowing experience of setting sail in search of asylum: Ruth and her family board the St. Louis to escape Nazism; Phu sets out alone from war-torn Vietnam; José tries to reach the U.S. from Cuba; Najeeba flees Afghanistan and the Taliban; Mohamed, an orphan, runs from his village on the Ivory Coast. Aimed at middle grade students, Stormy Seas combines a contemporary collage-based design, sidebars, fact boxes, timeline and further reading to produce a book that is ideal for both reading and research. Readers will gain new insights into a situation that has constantly been making the headlines.

    But what did it really take to get us there?The Moon landing is one of the most ambitious, thrilling, and dangerous ventures in human history. This fully illustrated book tells the stories of the 400,000 unsung heroes--the engineers, mathematicians, seamstresses, welders, and factory workers--and their innovations and life-changing technological leaps forward that allowed NASA to achieve this unparalleled accomplishment.From the shocking launch of the Russian satellite Sputnik to the triumphant splashdown of Apollo 11, Caldecott Honor winner John Rocco answers every possible question about this world-altering mission. Each step in the space race is revealed, examined, and displayed through diagrams, experiments, moments of crisis, and human stories.

    Lay on a BIG spidey smoocheroo.b. Smile, but back away slowly.c. Grab the closest object, wind up, and let it fly.d. Run away screaming.If you chose b, c, or d, then this book is for you! (If you chose a, you might be crazy.)I'm Trying to Love Spiders will help you see these amazing arachnids in a whole new light, from their awesomely excessive eight eyes, to the seventy-five pounds of bugs a spider can eat in a single year! And you're sure to feel better knowing you have a better chance of being struck by lightning than being fatally bit by a spider. Comforting, right? No? Either way, there's heaps more information in here to help you forget your fears . . . or at least laugh a lot!

    US Air Force Lieutenant Gail S. Halvorsen knew the children of the city were suffering. To lift their spirits, he began dropping chocolate and gum by parachute.Michael O. Tunnell tells an inspiring tale of candy and courage, illustrated with Lt. Halvorsen's personal photographs, as well as letters and drawings from the children of Berlin to their beloved "Uncle Wiggly Wings."

    Now Sophie tells her story in this picture book that celebrates women in science, bugs of all kinds, and the importance of staying true to yourself.Sophia Spencer has loved bugs ever since a butterfly landed on her shoulder--and wouldn't leave--at a butterfly conservancy when she was only two-and-a-half years old. In preschool and kindergarten, Sophia was thrilled to share what she knew about grasshoppers (her very favorite insects), as well as ants and fireflies... but by first grade, not everyone shared her enthusiasm. Some students bullied her, and Sophia stopped talking about bugs altogether. When Sophia's mother wrote to an entomological society looking for a bug scientist to be a pen pal for her daughter, she and Sophie were overwhelmed by the enthusiastic response--letters, photos, and videos came flooding in. Using the hashtag BugsR4Girls, scientists tweeted hundreds of times to tell Sophia to keep up her interest in bugs--and it worked! Sophia has since appeared on Good Morning America, The Today Show, and NPR, and she continues to share her love of bugs with others.

    But in 1993, the Democratic Republic of Congo, where Michel and his family live, is a country in tumult. One afternoon Michel and his friends are kidnapped by rebel militants and forced to become child soldiers.

    Owling invites young readers into the world of real-life owls, to learn about their fascinating behaviors and abilities.   Wildlife photojournalist and nature educator Mark Wilson presents a one-of-a-kind look into the mysterious lives of these distinctive birds. Dramatic images of the 19 owl species of North America nesting, flying, hunting, and catching prey are accompanied by information about the birds’ silent flight, remarkable eyes and ears, haunting calls, and fascinating night life. Kids will learn how to spot owls; identify their calls, plumage, and pellets; and even carry on a hooting conversation with a nearby owl.

    Stunning, realistic illustrations celebrate the beauty of these mysterious creatures as readers learn important facts through an engaging and fascinating story. The book also includes back matter with more in-depth information, a glossary, and further resources.

    Henrietta spent years measuring star positions and sizes from photographs taken by the telescope at the Harvard College Observatory, where she worked. After Henrietta observed that certain stars had a fixed pattern to their changes, her discovery made it possible for astronomers to measure greater and greater distances—leading to our present understanding of the vast size of the universe.An astronomer of her time called Henrietta Leavitt “one of the most important women ever to touch astronomy,” and another close associate said she had the “best mind at the Harvard Observatory.” Henrietta Leaveitt's story will inspire young women and aspiring scientists of all kinds and includes additional information about the solar system and astronomy.

    As an adult, she dives even deeper. Whether she's designing submersibles, swimming with the whales, or taking deep-water walks, Sylvia Earle has dedicated her life to learning more about what she calls "the blue heart of the planet." With stunningly detailed pictures of the wonders of the sea, Life in the Ocean tells the story of Sylvia's growing passion and how her ocean exploration and advocacy have made her known around the world. This picture book biography also includes an informative author's note that will motivate young environmentalists.Life in the Ocean is one of The Washington Post's Best Kids Books of 2012

    Here comes Sgt. Stubby! That German shepherd star of the silver screen may have been born behind enemy lines during World War I, but Stubby, the stump-tailed terrier, worked behind enemy lines, and gained military honors along the way. Private Robert Conroy casually adopted the orphan pup while attending basic training on the campus of Yale University in 1917. The Connecticut volunteer never imagined that his stray dog would become a war hero. He just liked the little guy. When Conroy's unit shipped out for France, he smuggled his new friend aboard. By the time Stubby encountered Conroy's commanding officer, the dog had perfected his right-paw salute. Charmed, the CO awarded Stubby mascot status and sent him along with Conroy's unit to the Western Front. Stubby's brave deeds earned him a place in history and in the Smithsonian Institution where his stuffed body can still be seen. Almost 100 years later, Stubby's great deeds and brave heart make him an animal hero to fall in love with and treasure all over again.

    Gradually reintroduced, they are thriving again in the West, much to the benefit of the ecosystem. This book will teach a new generation to appreciate the grace, dignity, and value of wolves as it promotes awareness of the environment’s delicate balance. Paired with gorgeous paintings by landscape artist Wendell Minor, Jean Craighead George’s engaging text will inspire people of all ages to care about the protection of endangered species.

    Fun and informative back matter takes the shape of an interview so that readers learn more right from the bird's bill. Ken Pak's lively illustrations, paired with Rita Gray's words, render a visual and sonorous picture book to be enjoyed by young naturalists.