Walking through many different types of trees, three hikers discover the creatures that inhabit the various climes and seasons. Stepping through the autumn forest, they spy squirrels and chickadees. In the spruce trees, they find a moose, a Canadian goose, and a beaver. Gum trees are home to a kookaburra and a koala, while the Pinion Pines hide a rattlesnake and a roadrunner. Each double-paged spread features a foldout portion, asking readers to guess “ . . . what will we see in the trees, we three?” By lifting the flap, readers can read the rest of the verse and the names of the animals illustrated beneath. By making sure only to listen, watch, and care for the forests, the three leave them for others to enjoy. Clear colors and simple shapes make the various trees and their inhabitants easy to identify. The repetitive verses and simple rhymes will make this a favorite of young naturalists. This addition to the team’s other books investigating flying and sailing (We’ll All Go Flying, not reviewed, etc.) will entice readers to explore their own environments. (Picture book.3-5)