Given the ability tests have shown that bite force is by the size of the skull to disperse the pressure. This is a picture of a wolf skull compared to a Pit skull and here is a video of a Tosa bite measurenot even trying just after a wolf making a defensive bite. start at 3:21[youtube]y-9UNEDbXAc[/youtube][br][link={e_FILE}public/1327640100_19198_FT86048_apbtwolfskull.jpg][img:width=500&height=479]{e_FILE}public/1327640100_19198_FT86048_apbtwolfskull_.jpg">[/link][br]