The story of the man who talks with the animals (played by Rex Harrison in the 1967 film). Not succeeding well as a real Doctor - largely because he prefers animals to even the best of people, Doctor Doolittle becomes an animal doctor. His pet parrot convinces him to learn the animal languages and he becomes a great success. In order to fund an expedition to find the Giant Pink Sea Snail Doctor Doolittle joins a circus but this leads him to help a love-sick seal return to her freedom - an act that loses him his. The circus animals help him to escape and he sets off on an adventure aboard "The Flounder". The travellers end up on a floating island eventually meeting the snail who gives his friends a lift home - he himself not returning to avoid re-imprisonment. But when his friends clear his name he is able to convince the giant lunar moth to give him the ride he needs to rejoin them.