The investigations take a look at about 17 different categories of evidence: fossil evidence, new species discoveries, dermal ridges, the sasquatch body, images, step frequency, biomechanics, forensic measurements, Patterson-Gimlin film, behavior parallels, vocalizations, visual misidentification, track morphology, kinesiology, soft tissue pathology, statistics, and DNA. Some very interesting conclusions are drawn from these studies. For example, did you know human dermal ridges run one direction while primate dermal ridges run another? Some of the tracks that were found exhibit dermal ridges and were examined by a professional.