Someone's just suggested Basil might be (mostly) a Rottweiler.
Basil (still young):
Rotty (presumably full-grown):
Weight: 70-120 lbs.
Oh dear…but that's certainly plausible the rate he's growing…
Intelligence: low to medium.
That settles it! We've got us a Rottweiler!
(info from Rottweiler Brief)[Danny Ayers]