Amazon.com description: Product Description: Each night bats zip, zap, and zoom through the darkness as they hunt. Many people are afraid of bats --but they shouldnt be. Bats actually help us by eating the bugs that bite humans and destroy crops. A bat eats half its weight in insects every day. little brown bats can zap 150 mosquitoes in 150 minutes! With lively text and animated illustartions, author Ann Earle and illustrator Henry Cole illuminate the world of bats -- dispelling common myths and revealing the vital role of bats in our environment.