Hugh Lofting 
Story of Doctor Dolittle 

The main character John Dolittle, MD, is a respected physician and quiet bachelor living with his spinster sister in the small eng village of Puddleby-on-the-Marsh. His love of animals grows over the years and his household menagerie eventually scares off his human clientele, leading to loss of wealth. But after learning the secret of speaking to all animals from his parrot he takes up veterinary practice. His fortunes rise and fall again after a crocodile takes up residence, leading to his sister leaving in disgust with the intention of getting married, but his fame in the animal kingdom spreads throughout the world. He is conscripted into voyaging to Africa to cure a monkey epidemic just as he faces bankruptcy. He has to borrow supplies and a ship, and sails with a crew of his favourite animals, but is shipwrecked upon arriving to Africa. On the way to the monkey kingdom, his band is arrested by the king of Jolliginki, a victim of European exploitation who wants no white men traveling his country… (Excerpt from Wikipedia)