The Voyages of Doctor Dolittle by Hugh Lofting

Doctor Dolittle is one of kind. Not only can he talk to animals—but he can understand them too! One day Doctor Dolittle receives a message from Africa—the monkeys there need his help. So he sails off from his home, bringing along all his pals: Dab-Dab, the duck; Jip, the dog; Gub-Gub, the baby pig; Polynesia, the parrot; and Too-Too, the owl. Join the doctor and his animal friends on an amazing adventures. They even meet the rarest of all animals, the two-headed pushmi-pullyu!