Monkeys--mammals with thumbs like us and tails that help them swing. Developing readers learn about the many types of monkeys living in the rainforest in this low-level search-and-find beginning reader. Swinging through the trees, and hanging from its tail, there goes a monkey. Their prehensile tails act as a third arm which allows them to better traverse the rainforest. Early readers will discover key characteristics of these mammals.