Much like humans, many animals line up for a variety of reasons. Rather than forming lines for the school bus or recess, the animals featured in Susan Stockdale's book form lines for safety: baby Mallard ducklings follow their mother to the water for their first swimwarmth: turtles climb into a stacked line for a better share of the sun's raysnavigation: Arctic wolves follow the prints in the snow left by the pack leaderfood: ants line up to follow the scent of their leader to food and safetytravel: pink flamingos form a line to reduce wind resistance and fly more efficiently Featuring birds, crustaceans, fish, insects, mammals, and reptiles from around the world, Line Up is a cozy and comforting book that reminds us of our similarities while illuminating some specific, distinctive behaviors.