"Hoax Hallmarks
True hoaxes have certain hallmarks, and such is the case with hominoid hoaxes. In fact, the Fox TV show used two such "genuine" hoaxes in an effort to smear the Patterson film by association. A hoaxed hominoid film will usually not be attributable to any specific person, it will be provided anonymously, so whoever filmed it cannot be grilled by specialists who will be able to quickly expose the fraud. Also, the place where the filming occurred will not be provided, so experts cannot return to the scene and check for footprints, measure the creature against items (tree limbs, rocks, etc.) in the background, or bring tracking dogs to see what their reaction will be. (Because of a hominoid's overpowering stench, even tracking dogs will recoil from it, while a human in a suit will be pursued as if the suit did not exist.)
In contrast to a hoaxer's typical behavior, Roger Patterson went right out
from the sighting and called several area experts, begging them to come to the scene and to bring tracking dogs. None of the experts would come. However, several friends within the community of bigfoot hunters did come to the scene to thoroughly examine it for several days afterward, so there is no doubt that the creature was there, she left numerous clear tracks that were photographed and cast in plaster, and her weight was in the 600 to 800 pound range because the tracks she left sank a full inch into the hard-packed sand at the creek bank, while a 200 pound man walking near her tracks sank only about a quarter of an inch. These facts are utterly undeniable, and they were utterly avoided in the piece presented as fact on "World's Greatest Hoaxes."
Technical Evidence
1) It was a bright, cloudless day with sunlight glinting off the creature's hair as she walked. In close-up and at very slow motion it is easy to see her muscles rippling in her right shoulder and in her right thigh, just as they would be visible in a human with those body parts exposed. If it had been a human in a suit, the suit would have to have been glued to the skin to achieve such an effect, but in the act of gluing, the subtle interaction between muscle and skin would be lost. Even today, in 1999, Hollywood special effects wizards find it extremely difficult to portray such subtle subcutaneous movements. In 1967 it was flatly impossible (check out "Planet Of The Apes").
2) The creature's arms are markedly longer than human arms, with elbows that clearly articulate well below where the elbows of a human in a suit would articulate. The added length of the humerus (shoulder to elbow) is four, five, or even six inches, which in anatomical terms is a light-year, and which causes the hands to swing down near the knees, whereas in a human the hands reach only to mid-thigh or above. There is literally no reasonable comparison between the two.
3) The creature's breasts are large, pendulous, and quite noticeable when she turns to face Patterson as he films. In close-up and slow motion (conspicuously avoided in the Fox show), it is easy to see their fluid sway as she turns, and their distinct "bounce" as she takes two steps. They are indistinguishable from human mammary tissue in motion, yet if they were an attachment to a modern body suit they would move more like silicone or gel implants. And in 1967 they would no doubt have looked like the original implant "nosecones."
4) The creature's body is extraordinarily thick throughout all of its parts and in every dimension, much more so than a similarly proportioned human (as seen in the accompanying "true" hoaxes). The thighs are massive and flow quite naturally into equally thick buttocks. When the creature turns to observe Patterson, the movement begins with a smooth shift of the hips that follows up through a swing of the entire upper torso, which reveals a shoulder width of approximately 30 percent more than humans have. Such outsized dimensions are not possible to duplicate with a human in a suit and still retain even a semblance of the "natural" movements seen in the film.
5) The creature's walk has been carefully analyzed by specialists in biomechanics in both England and Russia. Their conclusion is that its walk is completely natural, yet unmistakably non-human. The torso never rises above several degrees from vertical, while humans walk with their torsos at or near vertical. The knees never lock, maintaining a clear bend through the "carry" of each step. Humans lock their knees with each step. So once again, there is no reasonable comparison to be made except that humans and the Patterson creature walk upright on two legs."
And:
"One more such breach that needs to be mentioned is this: Bob Gimlin is still alive, yet his name was not mentioned in "World's Greatest Hoaxes." Why? Because Gimlin has insisted all of his long life that the film is genuine. Now, to question the authenticity of the film is to question the integrity of Bob Gimlin, and that is not easy to do for the following reason. When money for the film began to roll in, Roger Patterson ruthlessly cut Bob Gimlin out of any participation in the proceeds. If the film had been a hoax and Bob Gimlin had known about it, that would have been an insane move for Patterson to make. All Gimlin would have had to do was expose the hoax to make the $25,000 that was being offered at the time for conclusive proof about it one way or the other. Gimlin did not offer such proof, even at the lowest point in his relationship with Patterson.
What that means is this: If Patterson did indeed fake the film, he clearly did so without Bob Gimlin's knowledge. And that means the person in the suit (Jerry Romney if you believe the Fox TV hoaxers) was parading around in front of a man armed with a high-powered hunting rifle who would have been well within his legal (if not moral) rights to shoot him dead and take him home as a priceless "trophy." So it seems unlikely that Jerry Romney, or anyone short of a complete imbecile, could have been talked into getting into that suit on that particular day."
http://www.lloydpye.com/A-FoxTV.htm