One-Dog Canoe by Mary Casanova (2009)
When the impish blonde heroine of Mary Casanova's One-Dog Canoe sets out for a paddle around the lake, she intends to have just one animal along for the ride: her dog. The two canoe companionably for a time, gliding past pine trees, ducks, fish, and frogs. Then a beaver on the bank asks if he can join them. The girl protests politely--"It's a one-dog canoe"--but the beaver scrambles in anyway and finds a seat comfortably near the picnic basket. The girl's credibility is lost. Soon the three are joined by a loon, a wolf, a bear, and a moose, and finally a frog hoping for a dry ride.