Ants are known for being industrious insects. They follow set paths to find food and are often seen walking in a straight line. If you follow them, they'll lead you right back to their nest. When scientists found ants that were walking off course in tropical forests, they knew something was wrong. Readers learn all the latest information about these fascinating zombie ants, including what causes their strange behavior and what threat it poses to their species. Full-color photographs show the deadly end of these ants, and fact boxes offer more details about a rare parasitic phenomenon.