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"Vast numbers of Earth's plants and animals live in the planet's oceans-but scientists estimate we know about far less than half of them! It may be impossible to know just how many creatures live there, but it's clear that marine habitats are home to thousands of species. In this intriguing book, readers will get a peek into one of the most unusual, least known habitats on the planet. From brightly colored (and endangered) coral reefs to the darkest of ocean depths, this volume will fascinate kids with information about Earth's most mysterious habitat"--
Tundra habitats are some of the harshest places on Earth. They exist in the Northern Hemisphere north of the Arctic Circle and on mountains at high altitude. But all the plants and animals that live in tundra habitats are highly adapted to living there. People have lived in tundra habitats for thousands of years. However, human activity threatens the future of these important places. Using short facts and full-color photographs, this book introduces readers to the vast diversity of tundra habitats around the world and the measures we need to take to preserve them.
"Bogs, marshes, swamps-what's the difference? They're all kinds of wetlands, fascinating ecosystems that are home to myriad species of plants, animals, and microbes. These organisms are adapted to both dry and watery conditions. In this valuable volume, the most interesting and informative facts about wetlands are presented through accessible text and colorful photographs. Essential concepts of the elementary science classroom, such as adaptations and habitats, are given special attention. Graphic organizers help clarify and review key ideas for budding ecologists"--
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