While many people know that bats and owls are nighttime animals, the fact that scorpions and skunks become busy as night falls is less well known. In fact, many of Earths most fascinating animals are active during the night and twilight hours. This great series introduces some of North Americas most common nocturnal and crepuscular (active at twilight) animals. Beautiful full-page color photos and a wealth of information are sure to capture the imaginations of young readers.