Line up!

"Much like humans, many animals line up for a variety of reasons. Rather than forming lines for the school bus or recess, the animals . . . form lines for safety--baby Mallard ducklings follow their mother to the water for their first swim warmth--turtles climb into a stacked line for a better share of the sun's rays navigation--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 safety travel--pink flamingos form a line to reduce wind resistance and fly more efficiently"--Provided by publisher.