He's a gentle giant, standing a little over four feet tall, and weighing in at 180 pounds. He helps heal sick children, but he's not a doctor. Tuesday, he visited Phoenix Children's Hospital.
4-year-old Josiah Bradford has a cyst on his throat. He might need surgery. While he and mom Abbey wait for the doctors, they try a therapy of a different kind.
"It kind of lifts their spirits, makes them feel comfortable being here in the hospital, because it can be scary at times," says mom Abbey Bradford.
Bentley is a 4-year-old harlequin Great Dane. At 24 inches, he wags the world's longest tail. He also holds the record for largest service dog.
He's a gentle giant that puts a smile on the faces of even the sickest children.
Owner Patrick Malcolm says the two visit hospitals around the country.
"We love it, we love it, we like seeing the kids all happy," says Malcolm.
Bentley's visit serves a dual purpose, according to the director of the hospital's Paws Can Heal program. It's not just about putting smiles on kids' faces…
"It really helps them get up, get out of bed, take a walk all the things they need to do get well," says Mary Lou Jennings of PCH.
Mary Lou Jennings says Bentley is by far the children's favorite therapy animal.
Tuesday was his second visit to PCH, but there's no doubt everyone will be happy to see him come back.
Bentley's owner trained him as a service dog because his 8-year-old cousin was diagnosed with bone cancer -- he's now in remission so Bentley works to help other kids.
Bentley has his own non-profit to help kids and canines affected by cancer.