Research has shown that certain breeds of dogs are more aggressive than others such as Rottweillers, and Pit Bull Terriers. In terms of aggessiveness how important is gender a factor?

Its true that certain breeds like pitbulls were bred to fight, but if this type of dog is properly socialized and raised by a responsible owner than it will most likely be very sweet. Dogs aren't born aggressive its things we do that make them that way.

It really makes me sad to hear about people who fight their dogs because, the dogs don't fight because they are aggressive they do it to please their owner, and they will even if it means beong ripped a part by another dog, and that isn't right!

My opinion is that the males would tend to be aggressive, more often,if they were allowed to remain intact. The reason for this is because of the hormones that are continually coursing through their body.