Look at that tongue.
The peanut butter-loving dog's tongue measures 7.3 inches from snout to tip. That's equal to 2.5 Jenga blocks in a row, record keepers say.
The Rickert family adopted Mochi when she was 2 years old. She'd been abused and neglected as a puppy.
Owner Carla Rickert told Guinness World Records that she hopes this record will "bring attention to how much joy rescued animals can bring their new family."
Rickert also said that Mochi has taught them it's OK to be different, adding: "We are proud of her unique feature."
But it does come with some challenges. It can make it hard for the dog to breathe, she needs help picking stuff up off the floor, she's extra slobbery when she's nervous, and stuff gets stuck to her tongue – like dirt, dust and leaves.
Mochi – and her super long tongue – are featured in the Guinness World Records: Amazing Animalsbook.
Mochi's isn't longest tongue ever
Mochi's tongue isn't the longest one on record, though.
That title belongs to Brandy, a boxer from Michigan whose tong was 1-foot, 5-inches long. Brandy died in 2002.
This story is part of our Best of the Web section – which is just interesting stuff we find online and want to share with you.