Beautiful dogs.
My six-months (or so) mastiffy girl weighed in at the vet two days ago at 48 pounds. Except for the ears, she looks a lot like the brindle pup in the earlier photo. My dog is on the slim side, but heavily muscled in the hips and rear legs. She wrestles a lot with the Lab.
My apologies for the drift, but one question if I may. One of the reasons I did not think my mystery pup is a Presa was that the breed descriptions call for a rough coat. Hers is short, but decidedly silky in feel. It is also glossy, but I see in Presa photos (such as the above) glossy coats that do not look rough. So, I'm confused.