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.

    . . . I remember there was one tree, however, that the three of you couldn't stop staring at. . . . After the family spares him from the builders, Steve the tree quickly works his way into their lives. He holds their underwear when the dryer breaks down, he's there when Adam and Lindsay get their first crushes, and he's the centerpiece at their outdoor family parties. With a surprising lack of anthropomorphizing, this is a uniquely poignant celebration of fatherhood, families, love, and change.

    From the tiny island nations of Comoros, Seychelles, and S�o Tom� and Pr�ncipe, to its largest country, Africa is the only continent with land in all four hemispheres. Unlike any other continent, it is divided into two almost equal lengths by the equator, and it is nearly as wide as it is long.Enter into the daily life of children in the many countries of modern Africa. Countering stereotypes, Africa Is Not a Country celebrates the extraordinary diversity of this vibrant continent as experienced by children at home, at school, at work, and at play.The title says it all. Instead of the 'vanishing tribes' view of one Africa with tourists from different countries photographing the animals and primitive people, this informative picture book celebrates the diversity of the 53 nations that make up the continent today. . . readers will want to go on from here to explore in depth particular countries that interest them. The essential differences and connections are here. --Booklist

    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

    And he determined that one day his camera would capture for others the wonder of the tiny crystal. Bentley's enthusiasm for photographing snowflakes was often misunderstood in his time, but his patience and determination revealed two important truths: no two snowflakes are alike; and each one is startlingly beautiful. His story is gracefully told and brought to life in lovely woodcuts, giving children insight into a soul who had not only a scientist's vision and perseverance but a clear passion for the wonders of nature. Snowflake Bentley won the 1999 Caldecott Medal.

    Frizzle's class is learning all about water. And when Wanda suggests they take a trip to Waterland, Ms Frizzle gets that funny look in her eyes. But instead of taking her class to the water theme park, she takes them on a seriously wet and wild ride - through the water cycle! Join the class as they evaporate, condense, rain, and make their way back to the ocean...only to evaporate all over again!

    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!

    High school science teacher Tom Robinson shows you how to expand your scientific horizons-from biology to chemistry to physics to outer space. You'll discover answers to questions like: Is it possible to blow up a balloon without actually blowing into it? What is inside coins? Can a magnet ever be "turned off"? Do toilets always flush in the same direction? Can a swimming pool be cleaned with just the breath of one person? You won't want to wait for a rainy day or your school's science fair to test these cool experiments for yourself! Tom Robinson teaches high school science and math and has coauthored an online advance placement physics course.

    Over the years, the tree provided a home for birds and shade for people looking for a place to rest, along with the first blooms of spring.On September 11, 2001, everything changed. The tree's home was destroyed, and it was buried under the rubble. But a month after tragedy struck, a shocking discovery was made at Ground Zero: the tree had survived.Dubbed the "Survivor Tree," it was moved to the Bronx to recover. And in the thoughtful care of the New York City Department of Parks and Recreation, the Callery pear was nursed back to health. Almost a decade later, the Survivor Tree returned home and was planted in the 9/11 Memorial to provide beauty and comfort...and also hope.This is the story of that tree--and of a nation in recovery. Told from the tree's perspective, This Very Tree is a touching tribute to first responders, the resilience of America, and the restorative power of community.

    . .In this celebration of observation, curiosity, and imagination, Brendan Wenzel shows us the many views of one cat, and how perspective shapes what we see. When you see a cat, what do you see?

    Eliza Wheeler's book tells the story of what happens when six-year-old Marvel, her seven siblings, and their mom must start all over again after their father has died. Deep in the woods of Wisconsin they find a tar-paper shack. It doesn't seem like much of a home, but they soon start seeing what it could be. During their first year it's a struggle to maintain the shack and make sure they have enough to eat. But each season also brings its own delights and blessings—and the children always find a way to have fun. Most importantly, the family finds immense joy in being together, surrounded by nature. And slowly, their little shack starts feeling like a true home—warm, bright, and filled up with love.

    A brilliant overview of world history from prehistoric times to the early 20th century

    Filled with illustrations of some of the most adorable babies in the kingdom, this awww-inspiring book looks at the traits that all baby mammals share and proves that, even though they're born in the wild, they're not so very different from us, after all!

    In over fifty dramatic, full-color photographs and an easy-to-read text, award-winning author Seymour Simon takes you on a fascinating tour of the nine planets, dozens of moons, and thousands of asteroids, meteoroids, and comets that travel around our sun.First, Simon explores the star at the center of our Solar System -- from the constant nuclear explosions at its core to the giant storms on its surface as geysers of flaming gas over a hundred thousand miles long rise and fall in just a few hours.You will also learn about the four rocky inner planets, from airless Mercury to fiery Venus, her sister planet, Earth, and mysterious Mars. Then join the thrilling Voyager missions to explore the four gaseous outer planets: gigantic Jupiter, ringed Saturn, tilted Uranus -- the planet "lying on its side" -- and windy Neptune. You will finish your journey at distant Pluto, then visit the asteroid belt and examine comets, the "dirty snowballs" in space.A companion volume to Simon's landmark series of individual books about each of the planets, the sun, stars, and other space sights, Our Solar System will introduce you to some of the most amazing mysteries in the universe.

    Take a stroll through the woods and learn to identify 24 different kinds of leaves by their shapes and autumn colors. At the end of the day, learn how to press the gathered leavesand how to make a leaf rubbing.Book includes:• Colorful illustrations of 24 separate leaves• How-to instructions for pressing your own leaves• How-to instructions for rubbing your own leaves• A game matching leaves to trees and names• Fun facts about the trees featured in the book