Pug. Image: Kálmán Czeibert, ELTE Eötvös Loránd University The team at the university in Budapest, Hungary spent decades gathering and digitizing hundreds of dog skulls.

Ashton, his family and their Bullmastiff puppy Kon, are just starting their journey together. In this video Ashton gives an A to Z explanation of what he's doing to raise his Bullmastiff puppy right.

What does a pug skull look like? University digitizes skulls of 152 dog breeds. Surprising no one, the bone structure of a Rottweiler looks very different than that of a French bulldog.