CORNELIO, dogos are sensetive to disipline,if you are a bit to harsh with a dogo you can ruin the dog,presas are a much tuffer dog in general,a ruff hand which very well might be reqiured, will NOT destroy the dogs spirt[confidance]like it might a dogo,there both fine dogs,both tolerante of the heat,i just enjoy the presas type, and ability to adapt to aprt living,as well as there tuff temperment...