3-year-old Great Dane Kevin from Iowa becomes the world's tallest dog at 3 feet 2 inches, surpassing previous record holder Zeus.

3-year-old Great Dane named Kevin from West Des Moines, Iowa, has been confirmed as the world's tallest dog by Guinness World Records, standing at 3 feet 2 inches tall. Known as a "gentle giant," Kevin surpassed the previous record holder, Zeus, a two-year-old American Great Dane who stood 3 feet 5.18 inches tall. Kevin lives with his owners, Roger and Tracy Wolfe, along with other pets at their home in West Des Moines, Iowa.