From tiny, colorful tree frogs to the giant salamanders that burrow along the riverbanks of Japan, there are more than 7,000 amphibian species living on our planet today. A True Book: Animal Kingdom series introduces young investigative readers to animal species, their habitats, unique abilities as well as an up-close look at the dangers these animals face today and find out how humans can help keep all animal species from disappearing forever. This series includes an age appropriate (grades 3-5) introduction to curriculum-relevant subjects and a robust resource section that encourages independent study. Readers will discover how fish live their lives, spending all of their time underwater. They will also find out how fish search for food and reproduce, as well as what dangers are facing these species today.