The photographs, and why they got worse

The founding image of this entire genre is a photograph of snow.

Menlung Basin, November 1951

Returning from the 1951 Everest Reconnaissance Expedition, Eric Shipton, the physician Michael Ward, and the Sherpa Sen Tensing crossed the Menlung La and descended the glacier that ends in the Menlung Chu. On an almost flat stretch they came across a series of footprints. Shipton photographed them, the photographs were published, and they have been reproduced ever since DOCUMENTED. His own narrative appeared the following year as The Mount Everest Reconnaissance Expedition 1951.

Ward, standing next to him, published his own account in the Alpine Journal in 1999, having made the same case two years earlier in Wilderness and Environmental Medicine. It corrects the popular version on several points at once.

Start with the count. Wikipedia says Shipton took three photographs, "one depicting the tracks, and other two of one particular print which was size compared by a pickaxe, and boot." Ward says four: "two of the indistinct prints with myself, my footprints and rucksack as comparison; the other two photos were of one of the most distinct and detailed prints, one with my ice axe and one with my booted foot for scale" CONTESTED. The one everybody reproduces is the ice-axe frame, which shows a single print. The two frames of the trail, which are the ones that would bear on stride and gait, are reproduced far less often.

Then the measurements, because there were none. "We had no means of measuring these," Ward wrote. That is the whole basis of the scale problem: the only references in the frame are his ice axe and his boot, a continental size 42, "which is about 12-13 inches long." He put the print at about the same length as the boot and "nearly twice as broad as my boot," with a clear big-toe imprint and four or five indistinct toes. He placed the site "at about 15-16,000ft." The elevation usually repeated, including on Wikipedia, is 6,000 m, near 20,000 feet CONTESTED. Following the tracks down the glacier, the party noticed what looked like claw marks wherever the prints crossed a crevasse about six inches wide.

Sen Tensing, asked on the spot, had no doubt the prints belonged to a yeti. He described two kinds, yak-eating and man-eating, the second leaving smaller tracks, and put the animal at about five feet tall, walking on two legs, covered in brown hair, with a face like a man and a high forehead. Pressed, he said he had never seen one. He was questioned again in Sherpa at Kathmandu and told the same story ALLEGED.

Ward footnotes the hoax theory to Peter Gillman's "The Most Abominable Hoaxer?" in the Sunday Times Magazine of 10 December 1989, and rejects it: Shipton's description was written at least a year before he lost the 1953 Everest leadership, Ward saw the tracks himself, and Tom Bourdillon, arriving a few days later, recorded them in his diary by which time sun and wind had deformed them CONTESTED.

His own answer was a local Tibetan with a badly deformed foot, and he lists what could produce the shape: enlargement of part of the foot, toes reduplicated up to ten on each foot, toes fused into a single larger digit, big toes set at right angles, club foot including "lobster foot" with only two immense toes. For the claw marks he offers onychogryphosis, ram's horn nail, in which the nail sticks out up to an inch. This is a hypothesis from one qualified observer, and he says so himself, calling it only "as plausible as any that have been put forward so far" ALLEGED. He also lists bear and langur among the candidates, noting the party saw no tail marks, and points out that the basin was visited regularly by people from villages in the Rongshar gorge a few miles away.

His closing line is the honest one: "We will never know for certain what man or animal made the footprints in the Menlung basin in 1951."

That is the ancestral pattern. A real photograph, a real trace, and no way to get from one to the other.

Sarasota County, 2000

A letter dated December 22, 2000, signed "God Bless. I prefer to remain anonymous," reached the sheriff's office in Sarasota County, Florida with two photographs enclosed DOCUMENTED. The writer said the animal had been stealing apples from her back porch near Interstate 75, and that when she surprised it with a camera she was afraid it was an escaped orangutan that might harm her family ALLEGED.

The images show a large reddish ape-like figure among palmettos, mouth open, apparently holding vegetation, with flash eyeshine. Loren Coleman and David Barkasy investigated, and the 2001 enhancements carry their copyright. Across posts in 2006 and 2008 Coleman argued that none of the offered explanations match: not a Planet of the Apes mask, which he called a red herring on the grounds that John Chambers was modeling ape faces in the first place; not an Apemania.com mask; not a Ripley's Believe It or Not Bigfoot model from Wisconsin, whose photograph he says skeptics flipped to make the comparison work; not a person in a dark costume. His position is that the subject remains "an unknown." Critics have pushed each of those explanations, and nobody has produced the suit CONTESTED.

The disqualifying problem sits upstream of all of it. The photographer has never been identified, the camera has never been examined, the porch has never been located, and there is no object of known size in either frame. An anonymous photograph is a photograph of a claim.

Allegheny National Forest, September 2007

Rick Jacobs, a hunter, strapped a motion-triggered camera to a tree in the Allegheny National Forest, about 115 miles northeast of Pittsburgh. The BFRO identifies it as a Bushnell Trail Sentry 2.1 and says the ground in the foreground "was baited with a deer attractant mix and a mineral lick block." On September 16, 2007 it fired three times. The first frame shows bear cubs. The second and third show a hunched, long-limbed, largely hairless animal with its nose near the ground DOCUMENTED.

Even the interval is disputed. The BFRO's page says "several minutes elapsed" between the cub frame and the animal frames. A Wikinews report that October put it at "at least 30-35" minutes. Two accounts of the same visible timestamps, and they do not agree.

The Pennsylvania Game Commission's spokesman, Jerry Feaser, told the Associated Press: "There is no question it is a bear with a severe case of mange." The agency's reasoning was that its officers trap bears for tagging constantly and routinely see animals that look like this. Paul Majeta of the BFRO told the same wire service, "It appears to be a primate-like animal. In my opinion, it appears to be a juvenile Sasquatch" CONTESTED.

Two things belong next to each other here. The BFRO's published rebuttal to the Game Commission is unsigned, and it is largely an argument about institutional credibility rather than an anatomical case: it rests on the agency's long denial of mountain lions in Pennsylvania and suggests a revenue motive, that hunting license sales "might be reduced if hunters were afraid to go into the woods by themselves." Its one physical comparison is a secondhand report that newspaper staff found the agency's offered bear photograph unlike the Jacobs animal, without saying how.

And the mange explanation is not a convenient invention. A 2019 paper by Niedringhaus, Brown, Ternent, Childress, Gettings and Yabsley states it flatly: "Mange was historically rare in American black bears. Since the 1990s, however, sarcoptic mange has become more widespread in black bears with hundreds of reports in 2018 from eight states" DOCUMENTED. Ternent is listed on that paper with the Pennsylvania Game Commission. A severely mangy black bear is hairless, gaunt, long in the limb, and looks nothing like the animal on a state park sign.

California, 1995 and 2005

On the evening of August 28, 1995, around 8:30 p.m., a crew was driving a 34-foot RV on a narrow side road in a redwood forest near Crescent City, in Del Norte County, California, at a location given as Jedediah Smith Redwoods State Park. What they were shooting is itself unsettled: a Waterland Productions crew in the BBC Wildlife account, an episode of a program called Adventures in one circulated note, a Playboy TV special in another. Craig Miller was running a Hi8 camcorder for behind-the-scenes footage. Something crossed the road ahead of the headlights, and by the investigators' account the whole encounter ran under thirty seconds.

This is the cleanest available demonstration of how badly photogrammetry goes when enthusiasm does the measuring. Jeff Meldrum and Richard Greenwell visited the site and published in BBC Wildlife in September 1998. Their estimate moved as their method changed: from the RV's factory specifications they got "nearly 2.5m," then, after the site visit and "careful measurement of trees visible in the video," they "arrived at a height of about 2.3m," roughly 7.5 feet. Larry Lund and Daniel Perez separately staged a headlight demonstration using Perez's own motor home, and Lund reported that the high beams struck him, at 5 feet 7 inches, at exactly the height they struck the subject on the tape.

That second exercise is often called a site reenactment. It should not be. Perez states that Peter Byrne, René Dahinden and Lund never interviewed the witnesses and never conducted an on-site investigation, and nothing in Lund's own account places the motor home at the location. Even the range is disputed: Meldrum and Greenwell put the closest approach at about 4.5 m, while Lund says the witnesses later told interviewers the subject was no more than 9 feet from the front bumper. Lund, Byrne and Dahinden concluded hoax. Perez did not, and he and Lund contradict each other in print about what Perez said at the time CONTESTED. To their credit, Meldrum and Greenwell wrote the caveat themselves: "It is certainly possible that the witnesses in this case, given their Hollywood connections, could have pulled off a spectacular hoax."

Ten years later, a video attributed to "Mark Nelson" was said to show a sasquatch near Lake Sonoma, shot on Sunday, November 13, 2005 by one account and circulated within days. The investigator John Freitas spent several hours on the ground on December 9, 2005 and published on December 11. He reported that Nelson gave him two different locations for the turnout in successive phone calls, that the entire fence along that road is field fence with no three-strand barbed wire anywhere, and that no distinctive peak in the area matches the skyline in the footage ALLEGED. The BFRO promoted the video as authentic.

By April 2006 the answer was public. The footage was hoaxed by and for Showtime's Penn & Teller: Bullshit! HOAX. Steven Novella's summary two years later is the fair one, and it is worth quoting because it does not gloat: "Although apparently sincere, the BFRO are not always so savvy to hoaxes."

Blobsquatch

The community named its own worst evidence, which deserves credit. Per Loren Coleman's history of the word, "blobsquatch" was coined on the Bigfoot Forums by Vito Quaranta, pushed into wide use by Ray Randell across 2002 and 2003, and used in a public lecture by Alton Higgins at the Willow Creek Symposium on September 14, 2003 ALLEGED. Higgins wrote the rule that follows from it, in a paper dated March 21, 2004 called "Evaluating Purported Sasquatch Photographic Evidence": "Any photo requiring equal parts interpretation and imagination (photos sometimes characterized as 'blobsquatches') should be discounted." Sharon Hill picked the word up in December 2006 as "my neologism of the year," and adopted two more she did not coin either, "blobster" for lake monsters and "blurfo" for blurry UFO photographs.

Blobsquatches are inevitable, and the reason is measurable. In a 2014 Cortex study, participants were shown pure-noise images but led to believe that 50% of them contained faces or letters. They reported seeing faces 34% of the time and letters 38% of the time, and the right fusiform face area responded specifically when they reported faces DOCUMENTED. Note the honest part of that result: behaviorally the letter illusion was slightly stronger, so what is face-specific is the neural signature and not the eagerness. Human pattern detection runs at a low threshold with a strong top-down component, and someone who has driven four hours to look for a sasquatch, in dim forest, is running that system at maximum gain.

The clean case is Anthony Wooldridge's March 1986 Himalayan photograph. In Coleman's words, it is the well-known picture "of what turned out to be, when Wooldridge went back to get a closer look, only a rock" DEBUNKED.

Why the pictures got worse

Ninety-one percent of American adults owned a smartphone as of Pew's survey conducted February 5 to June 18, 2025, up from 35% in 2011, and the photographic record of sasquatch has not improved. Four honest explanations cover it, and only the last is about the animal.

Phone cameras are wide-angle. The main lens on a phone is roughly a 24 to 28mm equivalent. It is built for a face at four feet and a landscape at infinity, and it is close to the worst possible instrument for a large mammal at 150 yards. A 300mm lens on 35mm film has more than eleven times that focal length, and most sighting photographs are taken on the main lens because that is what the camera opens to.

Low light destroys the frame. At dusk a phone lengthens the exposure and applies heavy noise reduction and sharpening. At 1/15 of a second, a swinging hand traveling at a walking pace moves on the order of two to five inches. The exact edges people want to inspect, the seam, the mask line, the hairline, are the first things the pipeline smears away.

The pipeline shrinks everything. The image that circulates has usually been screenshotted, recompressed by a messaging app, and cropped. The original file, with its EXIF data and full resolution, is the one thing an investigator needs and the thing that most often never appears.

And there may be no subject. SNAPSHOT USA 2019 ran 1,509 camera trap sites in 110 arrays across all 50 states over 14 weeks, from August 17 to November 24, 2019, and produced 166,036 unique detections of 83 mammal species and 17 bird species, every image reviewed at least twice by experts DOCUMENTED. Trail cameras plainly work. One of them took the Jacobs photographs. What they have returned, in the aggregate, is bears.

A short field guide

Find the scale reference, or admit there is none. A tree is not a known size. A road is not a known size. The only usable references are objects of known dimension in the same plane as the subject, verified by returning to the exact camera position. The Redwoods case shows what happens without that discipline: one team's estimate moved 20 centimeters when it switched from vehicle specifications to measured trees, and the rival demonstration that produced 5 feet 7 inches was not run at the site at all.

Watch for focal length compression. A long lens flattens depth and pulls the background toward the subject, which can make a nearby object look like a distant huge one. Digital zoom is a crop with interpolation and adds no information. If someone has "enhanced" an image, ask what was added.

Read the blur. Motion blur has direction and magnitude, and it should agree across the frame. A subject smeared while the branches behind it are sharp means a long exposure and a moving subject, and no edge in that subject is trustworthy.

Count the pixels before you argue about anatomy. The table below is this site's own arithmetic, not a citation. Assume a 12-megapixel photograph (4032 by 3024) on a wide lens covering about 70 degrees across the long axis, which works out near one arcminute per pixel, and take the head as one-eighth of standing height. For a 7-foot subject:

Change any assumption and the numbers move. The shape of the result does not. Most sighting photographs are taken well past 100 yards, and at that range a face is about ten pixels tall. Any claim about brow ridges is a claim about ten pixels.

Then consider the bear. It is the single most common answer, and it is not a lazy one. American black bears stand and walk bipedally, sometimes for long stretches. Pedals, a black bear with injured forepaws, walked upright around Oak Ridge, New Jersey and was videoed by residents from 2014, with the last confirmed sighting reported around Christmas 2015 DOCUMENTED. On October 17, 2016, New Jersey officials said they believed he had been killed during the bow season that ran October 10 to 15 ALLEGED. Add mange, which strips the coat and leaves a gaunt, long-limbed animal, and add dusk, distance, and a wide lens, and you have most of the photographic corpus. A photograph that cannot exclude a bear has not established anything, whatever else is true about the animal.

Sources

Every item below was opened and read for this entry.

• Michael Ward, "The Yeti Footprints: Myth and Reality," Alpine Journal 1999, pp. 81-87. All Ward quotations here are from this text. alpinejournal.org.uk
• Ward's own reference list in that article, used for three citations he makes and this entry repeats: E. Shipton, The Mount Everest Reconnaissance Expedition 1951 (Hodder and Stoughton, 1952); P. Gillman, "The Most Abominable Hoaxer?", Sunday Times Magazine, 10 December 1989; M. P. Ward, "Everest 1951: The Footprints Attributed to the Yeti, Myth and Reality," Wilderness and Environmental Medicine 8, 29-32, 1997. These were not independently opened.
• "Yeti," Wikipedia, consulted for the three-photograph count and the 6,000 m elevation that Ward's firsthand account contradicts. en.wikipedia.org/wiki/Yeti
• Associated Press, "Hunter's pics revive lively Bigfoot debate," NBC News, October 28, 2007. nbcnews.com
• Associated Press, "Is It Bigfoot Or Just A Mangy Bear?", CBS News, October 29, 2007. cbsnews.com
• "Hunter says he caught 'Bigfoot' on camera," Wikinews, October 29, 2007, source of the three-frame breakdown and the 30-35 minute interval. en.wikinews.org
• BFRO, "Jacobs Photos - Pennsylvania, 9/16/2007," source of the camera model, the bait, and the "several minutes" interval. bfro.net
• BFRO, "Debunking the Pennsylvania Game Commission" (unsigned). bfro.net
• K. D. Niedringhaus, J. D. Brown, M. Ternent, W. Childress, J. R. Gettings, M. J. Yabsley, "The emergence and expansion of sarcoptic mange in American black bears (Ursus americanus) in the United States," Veterinary Parasitology: Regional Studies and Reports 17 (2019), 100303. Abstract and author affiliations verified through Europe PMC; the publisher's page is paywalled. doi.org/10.1016/j.vprsr.2019.100303
• Jeff Meldrum and Richard Greenwell, "Bigfoot: Take Two," BBC Wildlife, September 1998, reprinted with commentary by David Bittner, Daniel Perez, Larry Lund and Robert Stansberry at Bigfoot Encounters, "The Redwoods Film (with commentary)." All Redwoods quotations come from this compilation. bigfootencounters.com
• John Freitas, with additional comments by Bill Dranginis, Thom Powell and Steve Kulls, "Newly Hoaxed Bigfoot Video: Separating Fact from Fiction," Bigfoot Encounters, December 11, 2005, with an April 2006 update on the Penn and Teller reveal. bigfootencounters.com
• Craig Woolheater, "Sonoma Bigfoot Video: Nine Years Ago Today," Cryptomundo, November 14, 2014, source of the phrase "hoaxed by and for Showtime's Penn & Teller: Bullshit!" cryptomundo.com
• Steven Novella, "Bigfoot Hoax," NeuroLogica Blog, August 21, 2008. theness.com
• Loren Coleman, "Cold Case Investigation For 2007: The Myakka Photos," Cryptomundo, December 31, 2006, source of the letter's date, its signature line and the Barkasy-Coleman copyright. cryptomundo.com
• Loren Coleman, "Myakka, Masks, and Apemania," Cryptomundo, June 16, 2008. cryptomundo.com
• "Skunk ape," Wikipedia, source of the letter's stated contents (apples, back porch, I-75, orangutan). en.wikipedia.org/wiki/Skunk_ape
• Loren Coleman, "The Short History of Blobsquatch," Cryptomundo, November 25, 2006. cryptomundo.com
• Loren Coleman, Cryptomundo post on the Wooldridge "Yeti Rock" photograph, July 19, 2006. cryptomundo.com
• Sharon A. Hill, "Unexplained Blobjects," December 29, 2006. idoubtit.wordpress.com
• J. Liu, J. Li, L. Feng, L. Li, J. Tian, K. Lee, "Seeing Jesus in toast: neural and behavioral correlates of face pareidolia," Cortex 53 (2014), 60-77. Abstract verified through Europe PMC; the publisher's page is paywalled. doi.org/10.1016/j.cortex.2014.01.013
• M. V. Cove, R. Kays, H. Bontrager, et al., "SNAPSHOT USA 2019: a coordinated national camera trap survey of the United States," Ecology 102(6), 2021, e03353. Abstract verified through Europe PMC; the publisher's page returned 403. doi.org/10.1002/ecy.3353
• Pew Research Center, Mobile Fact Sheet, survey conducted February 5 to June 18, 2025. pewresearch.org
• "Pedals (bear)," Wikipedia. en.wikipedia.org/wiki/Pedals_(bear)

Not used, and why. The claim that the Shipton photographs were published in The Times in December 1951 appears in the previous draft of this page and in much of the popular literature. No source consulted here supports it, so it has been removed rather than hedged. The Myakka letter is also widely quoted as describing apples in a bushel basket and three consecutive nightly visits. Neither detail appears in the sources above, so neither appears here.