Many people know that vampire bats drink blood, but most people don''t know that''s the only food adult vampire bats take in. In addition to milk, mother bats feed their babies regurgitated blood when they''re old enough. Readers learn creepy facts like these throughout the main content. Full-color photographs take readers through the night with vampire bats on the hunt, including a look at a bat actually drinking from livestock. Fact boxes enhance the main content''s focus on this incredible adaptation, adding information about vampire bats'' life-span, size, and more.