Horton is a lovable elephant from the children's book "Horton Hears a Who!" by Dr. Seuss. He is known for his big ears and gentle nature. Horton discovers a tiny world called Whoville on a speck of dust and learns that the inhabitants, the Whos, need his help. Despite being ridiculed by other animals, Horton remains determined to protect the tiny creatures. Horton's famous phrase, "A person's a person, no matter how small," highlights his belief in kindness and respect for all beings. His story teaches valuable lessons about empathy, courage, and standing up for those who cannot stand up for themselves.