How does a robin know when to feed her chicks? Who teaches young otters how to swim? Join Ms. McLean's class on a field trip to the zoo to find out! They're keeping track of patterns in animal behavior by observing different species and recording what they see. Learn to watch for the behavior patterns of wildlife in your backyard and record them on your own observation chart!

Martha E. H. Rustad is the author of more than two hundred nonfiction children's books, on topics ranging from snowflakes to termites to the Statue of Liberty. She lives with her family in Brainerd, Minnesota.