First bred as guard dogs, Tibetan mastiffs are fearless protectors ... Presa Canarios are intensely loyal, and they won’t ...

Once again, there are a few different approaches that can be taken for starting a guard dog security service. The first approach is to supply guard dogs with security handlers, the second is to ...

The collars, which are triggered by sounds in the frequency range of a dog bark (400Hz), are placed on livestock guard dogs. When the dogs bark, which typically occurs when defending livestock from a ...