“…In the Jungle of Nool something foreign lands on a piece of clover. It's not a spaceship but an entire alien world: the nearly infinitesimal planet of Who-ville. Horton the elephant, his large ears giving him the most acute hearing, detects cries from the clover speck. He can't see the little Whos, but he deduces, believes, knows that sentient creatures are in there; and his caring instinct tells him that they must be protected. He builds a rapport with the tiny planet's resident scientist, Dr. Hoovey, who is having just as much trouble convincing his villagers that there's a giant outside force, unseen but benevolent, that will determine their future."