“But when a pit bull does what that breed usually does, there has to be another explanation?”
Consider this, in light of the total number of pit bulls nationally. Note the listing up above on the thread of fatal ‘dog bites’ over the past several decades.
btw, I don’t own a pit bull. I own a lab and a Rott/GShepard mix breed.
There is no such thing as a ‘vicious’ breed of dog. Ask your vet.
Are some breed smarter, more likely to herd, more likely to fetch?