In the Jungle of Nool, Horton the elephant bathes in the watering hole when he sees a small dust speck floating by. He hears a call for help coming from the dust speck and, thinking someone is living on it, saves it from going over a waterfall. Setting it on top of a clover, he discovers it is home to a tiny town called Whoville, home to the microscopic Whos. One of the Whos, scientist Dr. H. Hoovey (replacing the Mayor), communicates with Horton through a device he built to see other worlds outside of the speck. The other Whos, however, only laugh at him, thinking nothing exists beyond their world. Horton promises to protect Whoville from harm, feeling that "a person's a person, no matter how small." The other animals in the jungle — particularly the cynical Jane Kangaroo — think he is crazy, and do not believe in the existence of the Whos.