A world record holder has been found living in north-eastern Kentucky.
The world's smallest dog, a chihuahua named Boo Boo, stands only four inches tall.
Her owner is a woman in Greenup County. She says she knew Boo Boo was special, but it wasn't until a few weeks ago she realized just how special.
Boo Boo's world record small stature has been certified by the Guinness Book Of World Records.
She's nearly an inch shorter than the previous record holder.