People talk about tooth size all the time. There's even a certain lingo for them. I have heard teeth called K9s, fangs, hangers, tusks & cutters. And yes, certain sizes of teeth run in bloodlines. For example, Zebo dogs & Eli dogs are known for big teeth, but any dog can have them. Here are 2 that have some big ole teeth: Double Blade, a Frisco bred dog: Possibly Boyles bred. Beautiful dog, BIG teeth! Hope this helps. Blessings ...