"When animals die out, the last survivor is called an endling. Discover the moving story of the last yellow-tipped Oahu tree snail, how it came to extinction, and the scientists who cared for and studied it. Finally, learn what can be done to protect our incredible wildlife. This book includes a table of contents, glossary of keywords, index, author biography, sidebars, and info about other animals on the brink of extinction"--