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.

    A full-color chapter book biography that shows how a self-taught scientist was the first to observe the microbial life in and around us. By building his own microscope, Antony van Leeuwenhoek advanced humanity's understanding of our oft-invisible world around us.

    Today, more than 30 million trees have been planted throughout Mama Miti’s native Kenya, and in 2004 she became the first African woman to win the Nobel Peace Prize. Wangari Muta Maathai has changed Kenya tree by tree—and with each page turned, children will realize their own ability to positively impact the future.

    But in every corner of the world this age-old custom is rapidly changing. From increased trade between countries to the expansion of global food corporations like Kraft and Nestlé, current events are having a tremendous impact on our eating habits. Chances are your supermarket is stocking a variety of international foods, and American fast food chains like McDonald’s and Kentucky Fried Chicken are popping up all over the planet. For the first time in history, more people are overfed than underfed. And while some people still have barely enough to eat, others overeat to the point of illness. To find out how mealtime is changing in real homes, authors Peter Menzel and Faith D’Aluisio visited families around the world to observe and photograph what they eat during the course of one week. They joined parents while they shopped at mega grocery stores and outdoor markets, and participated in a feast where a single goat was shared among many families. They watched moms making dinner in kitchens and over cooking fires, and they sat down to eat with twenty-five families in twenty-one countries--if you’re keeping track, that’s about 525 meals! The foods dished up ranged from hunted seal and spit-roasted guinea pig to U.N.-rationed grains and gallons of Coca-Cola. As Peter and Faith ate and talked with families, they learned firsthand about food consumption around the world and its corresponding causes and effects. The resulting family portraits offer a fascinating glimpse into the cultural similarities and differences served on dinner plates around the globe.

    Go, is an introduction to the ways in which a designer communicates his or her ideas to the world. It's written and designed just for those curious kids, not to mention their savvy parents, who want to learn the secret of how to make things dynamic and interesting.

    As a result, his body hasn't grown bigger and stronger as he's gotten older--it's gotten smaller and weaker instead. This hasn't stopped him from doing the things he enjoys (like eating pizza and playing sports and video games) with the people he loves, but it does mean that he routinely relies on his friends and family for help with everything from brushing his teeth to rolling over in bed.

    He loved looking at something in the room and making it come alive again in front of him. He drew pictures for his sisters, his classmates, his co-workers. Even during WWI, Horace filled his notebooks with drawings from the trenches . . . until he was shot. Upon his return home, Horace couldn't lift his right arm, and couldn't make any art. Slowly, with lots of practice, he regained use of his arm, until once again, he was able to paint--and paint, and paint! Soon, people—including the famous painter N. C. Wyeth—started noticing Horace's art, and before long, his paintings were displayed in galleries and museums across the country.

    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.

    In this Robert F. Silbert Honor Book, narrated in the voice of Holocaust survivor Jack Mandelbaum, readers will glimpse the dark reality of life during the Holocaust, and how one boy made it out alive.When twelve-year-old Jack Mandelbaum is separated from his family and shipped off to the Blechhammer concentration camp, his life becomes a never-ending nightmare. With minimal food to eat and harsh living conditions threatening his health, Jack manages to survive by thinking of his family.Supports the Common Core State Standards

    From bestselling nature writer and Newbery Medal winner Jean Craighead George comes an autobiographical story about how wild it can be living in a house full of animal fans.Imagine living with a skunk in your closet, a bat in your refrigerator, and a tarantula in your purse!In this hilarious autobiographical account, Newbery Medal–winning author and acclaimed naturalist Jean Craighead George describes her adventures in a house full of wildlife enthusiasts—and the amazing animals themselves.

    He gives us a greater understanding of their lives on planet earth. Adventure, comedy and sadness all intertwine to make these stories hard to put down until the last word.Duration: 5 hours 22 minutesThe stories include:1. Lobo, the King of Carrumpaw2. Silverspot, The Story of a Crow3. Raggylug, the Story of a Cottontail Rabbit4. Bingo, The Story of My Dog5. The Springfield Fox6. The Pacing Mustang7. Wully, The Story of a Yaller Dog8. Redruff, The Story of the Don Valley PartridgeErnest Thompson Seton (1860–1946) was an influential writer, wildlife artist and one of the founders of the Boy Scouts of America.Born in England, raised in Canada, Seton eventually moved to New Mexico and became part of the arts community with Georgia O'Keefe.Always interested in nature, the environment and Indian lore, Seton's literary work was among the first in the genre of modern wild-animal fiction, depicting character with a sense of compassion.

    Travel around the globe with some of the world's most incredible animals and discover their unique migration stories. Follow the emperor penguin through snow, ice and bitter temperatures; watch as the great white shark swims 10,000 km in search of seals; track huge herds of elephants, on their yearly hunt for water and be amazed at the millions of red crabs, migrating across Christmas Island.With stunning colour illustrations, uncover the astonishing migrations of 20 creatures, in this truly inspiring narrative. Written by Mike Unwin, a UK Travel Writer of the Year, and illustrated by Jenni Desmond, winner of the New York Times Best Illustrated Children's Book, prepare yourself for a journey like no other.

    What is creating this revolting smell? The answer is gross: the river is full of poop. But the smell isn’t the worst problem. Every few years, cholera breaks out, and thousands of people die. Could there be a connection between the foul water and the deadly disease? One engineer dreams of making London a cleaner, healthier place. His name is Joseph Bazalgette. His grand plan to create a new sewer system to clean the river is an engineering marvel. And his sewers will save lives. Nothing stinky about that.

    During he voyage to Mawson Station and back, Sophie keeps a diary. She sees icebergs, penguins, seals and whales. She makes new friends, wonders at the southern lights and even becomes stranded in a blizzard.

    They can be big, like a whale, tiny, like a shrimp, and even scary, like a shark.Even though sharks can be scary, we need them to keep the oceans healthy. Unfortunately, due to overfishing, many shark species are in danger of extinction, and that can cause big problems in the oceans and even on land.What would happen if this continued and sharks disappeared completely?Artist Lily Williams explores how the disappearance would affect other animals across the whole planet in this clever book about the importance of keeping sharks, and our oceans, healthy.