Monkeys! Seals! Tigers! Check out these eight action-packed scenes to see what happens during a full day at a busy zoo.

In each picture, the zoo buzzes with activity. Visitors, zookeepers, and animals move from place to place. Look for the changes that happen. Keep your eye on the clock too. By spending a whole day in the same place, you can watch events unfold from morning to night.

The Time Goes By series let's you spend a whole day (or a whole year) in the same place and watch events unfold. Eight large-scale illustrations combine with simple text to tell the story. A clock or calendar shows time passing, while a "search and find" feature encourages readers to study the artwork up close.