Great Dane in Pennsylvania may be world's tallest dog

What's 38 inches tall, 228 pounds and eats 110 pounds of food a month?

This is no riddle. This is a true story of a big dog in Lackawanna County, Pennsylvania, whose owners are trying to get him into the record books.

When he comes at you at a gallop, you might mistake Bentley for something else.

"You see a lot of people taking their phones out ... Basically the common reaction is, 'Is that a horse?'" Bob Magliocchi, owner, said.

Bentley's owner and his family in Throop have always had Great Danes but never one like Bentley. He's the biggest by far, and now possibly the biggest in the world.

Magliocchi and his family are in the process of applying for Bentley to be documented in the Guinness Book of World Records as the world's tallest living dog.

He stands 38 inches tall from paw to shoulder. He has an appetite, too, eating about 30 pounds of dog food a week.

"And some table food, treats, more or less," Magliocchi said.

Even though he is 228 pounds, Bentley considers himself a lap dog. Bentley is the textbook definition of a gentle giant - his owners didn't think the 5-year-old would make the record books until this year.

"I think by the vets, they were actually shocked by his size that he was because they said they never saw one his size, either. So, once they told me, 'Don't let him get over 240,' I sort of then realized that he is a large one," Magliocchi said.

Large enough to help himself - he can get his own ice from the ice maker.

Bentley and the Magliocchis should know before the end of the year if Bentley's picture will be in the record book.

"Maybe we'll get him a cake," Magliocchi said.