Behind those massive frames are hearts made of marshmallows ... the dog world, but they're one of the most mellow, patient, and friendly. Scooby-Doo was a Great Dane, by the way, and the breed ...

"Frenchies are the perfect companion breed and if you're looking for a loyal naturally protective breed that is also a big mushy marshmallow ... The AKC encourages dog lovers to do their research ...