It is in nature of humans that they try to pre- assuming things and setting up their mind towards one particular direction. The urge to look at things scientifically without presuming things due to the stereotype nature is important if one really wants to know the facts and not believe on the myths.
It is a tendency to observe dogs and then set up a just seen picture and then keep describing the breed that way. Pitbull also suffers from these myths and fake information about them by the people.
The thing that makes pitbull look like having a locked jaw is the Pitbull facts that they are determined creature. When they grab something in between their jaw they make sure that they do not lose grip on it and hence keep their jaws locked firmly.
People believe that in case a pitbull is aggressive towards other breeds then it will be aggressive towards humans as well. Pitbull facts say that the aggressive behaviour varies dynamically. One just cannot compare between the behaviour towards other breed and behaviour towards human.
It all depends upon how the dog has been trained and treated. If treated in the right manner, pitbull becomes one of the most loving, caring and protective pet one can ever have in his or her home.
Giving your pitbull dog the right food and proper supplements will help in caring for them in a better way. You can check out sites like pitbullsupplements.org to get more information related to right supplement for pitbull. Check here will help you in caring for your pet in a better way and will definitely keep them happy as well.