Evidence regarding Bigfoot, also known as Sasquatch, (the supposed ape-like animal said to live in North America) is contentious. Every piece brought forward as evidence has aroused both criticism and support. North America North America is a continent[1] in the Earths northern hemisphere and (chiefly) western hemisphere. ...

Eyewitness reports

The majority of Bigfoot reports are generated from areas having low human population densities, but some do originate from parks near major cities, such as Portland, Oregon,^[1]. In addition, most sightings are near rivers, creeks or lakes, and from areas where annual rainfall exceeds twenty inches (500 mm). Researchers point out that these common factors indicate patterns of a living species occupying an ecological niche, as opposed to hoaxed sightings.^[2] The late Grover Krantz noted these same data, and offered a detailed proposal for Bigfoot ecology and social behavior (Krantz, 158-171). It has been suggested that Evidence regarding Bigfoot be merged into this article or section. ... Nickname: Location of Portland in Multnomah County and the state of Oregon Coordinates: , Country State Counties Multnomah County Incorporated February 8, 1851 Government  - Mayor Tom Potter[1]  - Commissioners Sam Adams Randy Leonard Dan Saltzman Erik Sten  - Auditor Gary Blackmer Area  - Total 376. ... Two lichens on a rock, in two different ecological niches In ecology, a niche; (pronounced nich, neesh or nish)[1] is a term describing the relational position of a species or population in its ecosystem[1]. The ecological niche; describes how an organism or population responds to the distribution of... For the journal, see Ecology (journal). ...

Critics suggest people may have mistaken bears for Bigfoot, as sightings are sometimes near habitats of bears. However, the witnesses include experienced hunters and outdoorsmen, who claim to be familiar with bears, and insist that the creatures they saw were entirely different. Biologist John Bindernagel argues there are marked differences between bears and Sasquatch reports that make confusion unlikely: "In profile, the bear's prominent snout is markedly different from the Sasquatch flat face. In frontal view, the Sasquatch squarish shoulders contrast with the bear's tapered shoulders. The Sasquatch has relatively long legs that allow for a graceful stride, in contrast with the short-legged shuffles of a bear when it walks on its hind legs. A bear's ears are usually visible, while those of the Sasquatch are apparently hidden under long hair."^[3] Krantz made similar arguments (Krantz, 5). For other uses, see Bear (disambiguation). ... John Bindernagel is a wildlife biologist and renowned Bigfoot researcher, as well as a former wildlife advisor for United Nations. ...

Problems with eyewitness reports

Napier wrote that however accurate and sincere witnesses might seem, "eyewitness reports must be treated with considerable caution ... Although we don't always know what we see, we tend to see what we know" (Napier, 19). He also adds, "without checking possible ulterior motivations, eyewitnesses cannot be acceptable as primary data" (ibid, 198).

Native American culture

There are various Native American artifacts presented as circumstantial evidence for the existence of Sasquatch.

Stone heads

Pyle writes, "Certain artifacts suggest that some Amerindians were acquainted with something having the visage of an ape," and adds: "several carved stone heads from the Columbia River basin" (Pyle, 146). Pyle also notes that prominent paleontologist Othniel Charles Marsh wrote in 1877, "Among the many stone carvings (from the Columbia) were a number of heads, which so strongly resemble those of apes that the likeness at once presents itself" (ibid). Furthermore, the stone carvings are prehistoric (a conclusion supported by B. Robert Butler, who determined the heads as dating from Wakemap Middle Period, 1500 BC to 200 AD (Halpin and Ames, 299), depicting "prognathous, chinless faces with heavy brow ridges and in at least one case a sagittal crest." Pyle adds, "relics do not prove that Bigfoot exists or that [natives] had contact with apes, but they do raise some uncomfortable questions" (Ibid, 146). This article is about the biological superfamily. ... The Columbia River (French: fleuve Columbia) is a river in the Pacific Northwest region of North America. ... Othniel Charles Marsh (1831-1899) Othniel Charles Marsh (October 29, 1831 - March 18, 1899) was one of the pre-eminent paleontologists of the 19th century, who discovered and named many fossils found in the American West. ...

These artifacts are discussed at length by anthropologist Roderick Sprague in Carved Stone Heads of the Columbia and Sasquatch. Dozens of similar stone heads were recovered and most depict common animals. Sprague examines seven carved heads, which he argues have distinctively monkey- or ape-like features. Like Pyle, Sprague notes that this does not necessarily support Bigfoot's existence, but Sprague sees the question of what inspired the carved stone heads as intriguing and unresolved. Roderick Sprague is an American anthropologist, and the Director of the Laboratory of Anthropology at the University of Idaho. ...

Face masks

In "The Tsimshian Monkey Masks and Sasquatch," the anthropologist and ethnologist Marjorie Halpin describes two wood facemasks that were collected from the Tsimshian and Nisga'a tribes (near Prince Rupert, British Columbia). One was obtained by Lieutenant G. T. Emmons in about 1914, and the other was obtained by Marius Barbeau in 1927. Marjorie Halpin (February 11, 1937-August 30, 2000) was a U.S.-Canadian anthropologist best known for her work on Northwest Coast art and culture, especially the Tsimshian and Gitksan peoples. ... The Tsimshian, usually pronounced in English as // (SIM-shee-an), translated as People Inside the Skeena River, are Indigenous, or Native American and First Nation people who live around Terrace and Prince Rupert, on the north coast of British Columbia and the southernmost corner of Alaska on Annette Island. ... Nisgaa flag Mask with open eyes, worn during winter halait ceremonies, 18th–early 19th century The Nisaa (pronounced Nis-gah) are of the First Nations of Canada. ... Orthographic projection centred over Prince Rupert BC Coast, showing Prince Rupert and Vancouver Prince Rupert is a city in the province of British Columbia, Canada. ... Marius Barbeau Credit: J. Alex Castonguay/Library and Archives Canada/C-034447 Charles Marius Barbeau (March 5, 1883 – February 27, 1969), also known as C. Marius Barbeau, or more commonly simply Marius Barbeau, was a Canadian ethnographer and folklorist who is today considered a founder of Canadian anthropology. ...

Emmons described the artifact as "a mythical being found in the woods, and called today as a monkey" (Halpin and Ames, 211). Halpin also reports that the physical anthropologist R.D.E. MacPhee examined the Emmons mask and noted that it had both monkey- and ape-like features, but could not match it exactly to any recognized species (ibid, 212). Halpin details the elaborate mask-related folklore and rites pertaining to a creature called "pi'kis," which has both human and animal traits (especially connected to otters). He also describes the creature as occupying a "dangerously close intersection between human and animal" in native lore (ibid, 225). As with the carved stone heads, Halpin notes that these monkey-like masks alone do not prove that Sasquatch are real; rather, they are curious artifacts which warrant further investigation. Limber Pine woodland, Toiyabe Range, central Nevada Biologically, a woodland is a treed area differentiated from a forest. ... Approximate worldwide distribution of monkeys. ... This article is about the carnivorous mammals. ...

Problems with Native American culture as evidence

In the article, "On the Cultural Track of Sasquatch", Wayne Suttles offers a detailed examination of such legends, cited from various Pacific northwest tribes, including tales from the Salish, Lummi, Samish and Klallam peoples. Suttles confirms the often-repeated observation that none of the groups makes "real/mythical or natural/supernatural dichotomy" (Sprague and Krantz, 43). However, Suttles concludes that rather than being inspired by a real creature, "It seems more likely that these beliefs have grown out of several sources and have been maintained in several ways. One of the sources may have been a real man-like animal. But I must reluctantly admit that as I have presented data and organized arguments, I have found its track getting fainter and fainter" (ibid, 71). The Coast Salish are a Salishan-speaking First Nations/Native American culture that inhabited an area centered in southwestern British Columbia in Canada and western Washington in the United States for several millennia up to the time of arrival of the Europeans in the 19th century. ... The Lummi Nation is a Native American tribe in western Washington state in the United States. ... The Samish are a Native American tribe. ... This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...

Physical evidence

Bigfoot researchers make numerous claims that there is physical evidence for the creature's existence. Such evidence has seen, at best, minimal and scattered interest from mainstream experts, and is regarded as far from conclusive.

Footprints

Photographs or plaster casts of presumed Sasquatch footprints are often cited by cryptozoologists as important evidence. Krantz writes that "the push-off mound in midfootprint is one of the most impressive pieces of evidence to me" (Krantz, 36). This is a small mound of soil created "by a horizontal push of the forefoot just before it leaves the ground", present in some alleged Sasquatch tracks (ibid). Krantz argues that neither artificial wood nor rubber Sasquatch feet can create this convincing feature, as he discovered after many attempts. Most representations of these footprints would be around a US size 23.

Krantz notes, "The comfortable walking step for humans is about half the individual's standing height, or a trace more. Sasquatch step measurements correspond, in general, to stature estimates that are reported from sightings" (Krantz, 22). Krantz also reports that reputed Sasquatch steps are "in excess of three feet" (Krantz, 21), arguing that this enormous step would be difficult or impossible for hoaxers to create artificially.

Coleman and Clark write that there are some footprint hoaxes, but argue that they are often clumsy in comparison to presumably genuine prints, which "show distinctive forensic features that to investigators indicate they are not fakes" (Coleman and Clark, 42). Similarly, Krantz notes, "Toe positions can and do vary from one imprint to another of the same foot. We have several clear examples of this. It is my impression that sasquatch toes are more mobile than those on civilized human feet," and that hoaxing this detail would require detailed anatomical knowledge, as well as dozens or hundreds of different casts for each set of Bigfoot tracks, making a hoax unlikely (Krantz, 23). The word forensic (from Latin: forensis - forum) refers to something of, pertaining to, or used in a court of law. ...

Gaussian curve

Researcher Henry Franzoni writes:

Similarly, in Population Clines of the North American Sasquatch as Evidenced by Track Length and Average Status, anthropologist George Gill writes, "The preliminary results of our study support the hypothesis that Sasquatch actually exists ... not only seem to exist, but conform to ecogeographical rules" (Halpin and Ames, 272). The normal distribution, also called the Gaussian distribution, is an important family of continuous probability distributions, applicable in many fields. ... Female (left) and male Common Pheasant, illustrating the dramatic difference in both color and size, between the sexes Sexual dimorphism is the systematic difference in form between individuals of different sex in the same species. ...

Deformity

A series of alleged Bigfoot tracks found near Bossburg, Washington, in 1969 appeared to show that the creature's right foot was affected by clubfoot. The deformed footprints are consistent with genuine disfigurement, and some argue that a hoax is unlikely. John Napier wrote of this case, "It is very difficult to conceive of a hoaxer so subtle, so knowledgeable; and so sick; who would deliberately fake a footprint of this nature. I suppose it is possible, but it is so unlikely that I am prepared to discount it."^[5] Krantz declared that "analysis of the apparent anatomy of these tracks proved to be the first convincing evidence... that the animals were real" (Krantz, 54). Bossburg is a ghost town in Stevens County, Washington and is located on the east bank of the Columbia River just south of the Canadian border. ... Talipes equinovarus, otherwise known as clubfoot, is a congenital disorder where the foot is turned inward (inversion) and in plantar flexion. ...

Rene Dahinden, Ivan Marx, and another investigator found the tracks shortly after encountering another vehicle parked by the side of the road. Marx pulled over, got out, and walked off, returning shortly and explaining that they had to leave immediately to retrieve his camera equipment since he'd just found tracks. Many have suggested that the track makers (whose car was parked by the road) simply weren't done leaving the fake trackway for the Bigfooters to "find." John Green regards the entire Bossburg episode to be a hoax.

Handprints

As another argument offered for the existence of Bigfoot, Krantz cited two alleged Sasquatch handprints taken from northeastern Washington in the summer of 1970. He claims the prints were of a left hand, showing a very broad, flat palm (more than twice as broad as Krantz' own larger-than-average hands) with stubby fingers, lacking an opposable thumb. Krantz writes that the prints have "many irregularities ... which cannot be identified in terms of human anatomy" (Sprague and Krantz, 118). Missing image Thumbs up In human anatomy, the thumb is the first digit on a hand. ...

Another pair of alleged handprints was recovered in the late 1980s by Paul Freeman and given to Krantz for analysis; for similar reasons, Krantz judged them genuine (Krantz, 47-51). Paul Freeman (August 10, 1943 – April 2, 2003) was an American Bigfoot hunter who discovered alleged Bigfoot tracks showing dermal ridges. ...

Fingerprints

Several alleged Bigfoot hand and foot impressions said to contain dermal ridges (fingerprints) have been discovered; fingerprints are present only on humans and other primates. A macro shot of a palm and the base of several fingers; as seen here, debris can gather between the ridges. ...

Krantz reports that he offered casts of these prints to "more than forty" law enforcement fingerprint specialists across Canada and the United States for study. The reactions that he received ranged from "'very interesting' and 'they sure look real' to 'there is no doubt these are real.' The only exception was the Federal Bureau of Investigation expert who had said something to this effect, 'The implications of this are just too much; I can't believe it's real'" (Krantz, 71). F.B.I. and FBI redirect here. ...

Krantz offered these same casts to physical anthropologists and primatologists. Conclusions were similarly varied, with several ruling them hoaxes. Tim White, unlike most respondents, said there was "no good reason to reject them" (ibid). Opinion remains divided, however, with suggestions that the man who allegedly discovered the prints had confessed to other hoaxes. Physical anthropology, often called biological anthropology, studies the mechanisms of biological evolution, genetic inheritance, human adaptability and variation, primatology, primate morphology, and the fossil record of human evolution. ... Primatology is the study of primates. ... Tim White (born August 24, 1950 in Los Angeles, California) is an American Paleoanthropologist. ...

One of the casts with visible fingerprints showed what Krantz took to be sweat pores. Krantz reports that "police expert Benny Kling ... commented that anyone who could engrave ridge detail of such quantity and quality should be making counterfeit money" (Krantz, 77). This same print showed dysplasia, a common minor irregularity. Krantz writes, "The late Robert Olson was particularly impressed with this irregularity, as was Ed Palma of the San Diego Police Department" (ibid). SWEAT is an OLN/TSN show hosted by Julie Zwillich that aired in 2003-2004. ... For other uses, see Counterfeit (disambiguation). ... Dysplasia (from Greek, roughly: bad form) is a term used in pathology to refer to an abnormality in maturation of cells within a tissue. ... San Diego Police ABLE helicopter The San Diego Police Department (SDPD) is the primary law enforcement agency for the city of San Diego, California. ...

Body cast

The Skookum Body Cast was collected in the summer of 2000 after the Bigfoot Field Researchers Organization (BFRO) set out fruit bait in a rain run-off puddle near Skookum Meadows in the Gifford Pinchot National forest (Bigfoot Field Researchers Organization web site). A handful of top U.S. primate anatomy experts argue that the impression left in the mud near the fruit is the impression of a Sasquatch. 325 pounds of casting material was used to capture a "half-body print" consisting of an imprint of what has been called "a Sasquatch's butt, ankles, testicles , hip, thigh, left arm, and apparent hair on the body" (Coleman, op. cit). Skookum is the Native American Chinook word for Bigfoot or Sasquatch and according to Chinook Indian historian Joel Freeman, "Skookum" simply meant "powerful" (Coleman, 18). The Skookum Cast is a plaster cast taken on September 22, 2000 during a Bigfoot Field Researchers Organization (BFRO) expedition to the Skookum Meadows area of the Gifford Pinchot National Forest in Washington state. ... This article or section does not cite its references or sources. ... This article or section does not cite its references or sources. ... Loren Coleman in a photograph featured in his profile on Cryptomundo. ... Loren Coleman in a photograph featured in his profile on Cryptomundo. ...

All of the scientists who have examined the Skookum Cast in person, including, but not limited to, Dr. Jeff Meldrum (Idaho State University - Pocatello), Dr. Daris Swindler (University of Washington) and Dr. Esteban Sarmiento (The American Museum of Natural History - New York City) have unanimously confirmed that the Skookum impression is not an elk impression. Moreover, all of the qualified examiners so far have unanimously concluded, and still maintain today, that the Skookum impression was made by a very large primate.

As expected, certain individuals have expressed contradictory opinions, but those individuals are, without exception, non-scientist amateurs who have never seen or examined cast in person. For example, non-scientist Ron Schaffner (an appliance maintenance technician in Ohio, and a former BFRO investigator) suggested that the Skookum impression was made by an elk, not because Schaffner had the opportunity to view or examine the cast in person, but rather because he was never sufficiently persuaded to change his initial, unsupported assumption -- an assumption based solely on his limited understanding of the circumstances, and not based the Skookum cast itself.

In the world of bigfoot research, rivalries among amateur researchers will often color or define their opinions regarding evidence obtained by perceived rivals. To avoid this problem, the stated policy of the BFRO is to seek and accept the opinions of top scientists on matters of examinable evidence. In that context, the opinions of amateurs who have no formal scientific training, are considered, but do not carry much weight.

Hair and blood

Hairs retrieved from a bush in 1968 near Riggins, Idaho were given to Roy Pinker, a police science instructor at California State University, Los Angeles. Pinker concluded that the hair samples did not match any samples from known animal species. Pinker also stated that he could not attribute them as being Bigfoot hairs without a bonafide Bigfoot hair sample to compare to. (Halpin, M. & Ames, M. [eds.] Manlike Monsters on Trial, p. 296. University of British Columbia Press). Pinker's analysis did not use genetic fingerprinting, which was not developed until the 1980s. In "Analysis of Feces and Hair Suspected to be of Sasquatch Origin", anthropologist Vaughn M. Bryant Jr. and ecologist Burleigh Trevor-Deutch report the analysis of six alleged Bigfoot hairs recovered near Riggins, Idaho. (Halpin & Ames, pp. 191-200.). They examined several sets of hair samples and their results were inconclusive, but the samples appeared to be most similar to those from a Black bear.^[6] Riggins, a city located in Idaho County, Idaho, is nestled deep in a canyon at the confluence of the Salmon River and the Little Salmon River in west Central Idaho. ... California State University, Los Angeles (also known as Cal State L.A., CSULA, or CSLA) is a public university, part of the California State University system. ... Genetic fingerprinting, DNA testing, DNA typing, and DNA profiling are techniques used to distinguish between individuals of the same species using only samples of their DNA. Its invention by Sir Alec Jeffreys at the University of Leicester was announced in 1985. ... Riggins, a city located in Idaho County, Idaho, is nestled deep in a canyon at the confluence of the Salmon River and the Little Salmon River in west Central Idaho. ... Black Bear redirects here. ...

Hair samples were also taken from a house located on the Lummi Indian reservation in Washington. Three more samples were retrieved from Maryland, Oregon and California. Forensic Anthropologist Dr. Ellis R. Kerley and Physical Anthropologist Dr. Stephen Rosen of the University of Maryland, as well as Tom Moore, the Supervisor of the Wyoming Game and Fish Laboratory, examined the hair samples and stated that all the hair samples matched in terms of belonging to a "non species specific mammal". They concurred in finding that the four sets matched each other, were similar to gorilla and human but were neither, and they did not match 84 other species of North American mammals. They found that the samples had both primate, carnivore and ungulate characteristics. Rosen said if he had to choose he would guess it was an unknown primate. Blood associated with the sample from Idaho was tested by Dr. Vincent Sarich of the University of California and found to be that of an higher primate though Dr Sarich has suggested that the blood could possibly have been human. Like the Riggins samples above, these were not subjected to DNA tests. The Lummi Nation is a Native American tribe in western Washington state in the United States. ... For the capital city of the United States, see Washington, D.C.. For other uses, see Washington (disambiguation). ... Official language(s) None (English, de facto) Capital Annapolis Largest city Baltimore Largest metro area Baltimore-Washington Metropolitan Area Area  Ranked 42nd  - Total 12,407 sq mi (32,133 km²)  - Width 101 miles (145 km)  - Length 249 miles (400 km)  - % water 21  - Latitude 37° 53′ N to 39° 43′ N... Official language(s) (none)[1] Capital Salem Largest city Portland Area  Ranked 9th  - Total 98,466 sq mi (255,026 km²)  - Width 260 miles (420 km)  - Length 360 miles (580 km)  - % water 2. ... Official language(s) English Capital Sacramento Largest city Los Angeles Largest metro area Greater Los Angeles Area  Ranked 3rd  - Total 158,302 sq mi (410,000 km²)  - Width 250 miles (400 km)  - Length 770 miles (1,240 km)  - % water 4. ... Ellis R. Kerley (September 1, 1924 – September 3, 1998) was an American anthropologist, and pioneer in the field of Forensic anthropology, which is a field of expertise particularly useful to criminal investigators and for the identification of human remains for humanitarian purposes. ... The University of Maryland, College Park (also known as UM, UMD, or UMCP) is a public university located in the city of College Park, in Prince Georges County, Maryland, just outside Washington, D.C., in the United States. ... Berkeley Davis Irvine Los Angeles Merced Riverside San Diego Santa Barbara Santa Cruz UC Office of the President in Oakland The University of California (UC) is a public university system in the state of California. ...

Problems with physical evidence

Absence of fossil evidence

Critics think it significant that the fossil record provides no support for Sasquatch. There is ample fossil evidence in North America of prehistoric species of bear, cougar, moose and mammoth. Yet, aside from clearly human remains, there is no evidence of a prehistoric hominid or any other North American primate. A skeleton, or even a bone of a huge primate, if discovered, could not be mistaken as coming from any other North American mammal. Additionally, no one has found coproliths (fossilized dung) from a Bigfoot. For other uses, see Fossil (disambiguation). ... For other uses, see Cougar (disambiguation) or Puma (disambiguation). ... For other uses, see Moose (disambiguation). ... This article is about the genus Mammuthus. ... Coprolites are fossilized feces, or animal dung. ...

Bigfoot researchers argue that the absence of fossilized evidence is not evidence of fossil absence. Sasquatch is not represented in the fossil record, but neither are gorillas nor chimpanzees. Coleman and Patrick Huyghe note that "no one will look for such fossils, if the creatures involved are not thought to exist in the first place. But even with recognized primates, fossil finds are usually meager at best" (Coleman and Huyhge, 162). However, it is worth noting that gorillas, chimpanzees and most other primates live in tropical rain-forests where conditions are unsuitable to create fossils, and in areas where few or no archeological studies were undertaken. In contrast, there are thousands of known remains of native American mammals and humans. Type species Troglodytes gorilla Savage, 1847 distribution of Gorilla Species Gorilla gorilla Gorilla beringei The gorilla, the largest of the living primates, is a ground-dwelling omnivore that inhabits the forests of Africa. ... Type species Simia troglodytes Blumenbach, 1775 distribution of Species Pan troglodytes Pan paniscus Chimpanzee, often shortened to chimp, is the common name for the two extant species of apes in the genus Pan. ... Families 15, See classification A primate is any member of the biological order Primates, the group that contains all the species commonly related to the lemurs, monkeys, and apes, with the latter category including humans. ...

As to the lack of Bigfoot remains, Krantz suggested that this alone is not a valid argument against the creature's actuality. Noting that most animals hide before they die and are then quickly lost to scavengers, he writes, "I have yet to meet anyone who has found the remains of a bear that was not killed by human activity." (Krantz, 10) Fossilization also requires "ideal" conditions, such as being covered by a landslide, mudslide, or other deposit soon after death so that mineralization can take place on an undisturbed carcass. For a person who scavenges, see Waste picker. ...

It is also possible that if Sasquatch remains were ever found, they might have been assumed to have been a large human. Unusually large American Indian remains (sizes greater than six and a half feet) have been found in Ohio, Utah, and Tennessee throughout the 1800s. One such account was recorded by author John Haywood in his book, The Natural and Aboriginal History of Tennessee. In this account Haywood described skeletons found in White County, Tennessee, in 1821 which averaged at least 7 feet in length.

Inconclusive evidence

Most scientists find that the physical evidence, cited as supporting the existence of Bigfoot, has been ambiguous at best, or hoaxes at worst. There have been no dead bodies, bones or artifacts. There have been reported samples of fur and feces, but aside from the hair analysis by Dr. Rosen, none have been ruled conclusively (or by multiple authorities) as originating from any unknown animal. Some reputed Bigfoot samples, studied using DNA testing, were judged to have come from common animals. One such case earned press attention in mid-2005 when the alleged Bigfoot hairs were identified by University of Alberta geneticist David Coltman as originating from a bison.^[7] Other hair samples did not contain hair follicles, so DNA analysis was impossible. The University of Alberta (U of A) is a public coeducational research university located in Edmonton, Alberta, Canada. ... Species †B. antiquus B. bison B. bonasus †B. latifrons †B. occidentalis †B. priscus Bison is a taxonomic group containing six species of large even-toed ungulates within the subfamily Bovinae. ...

Audio and visual evidence

Audio

Analyses of purported Sasquatch vocalizations have been recorded and analyzed, leading bioacoustics expert Dr. Robert Benson of Texas A&M University - Corpus Christi to report that some recordings "left him puzzled", and helped change his opinion "from being a raving skeptic to being curiously receptive."^[8] Bioacoustics is a cross-disciplinary science that combines biology and acoustics. ... Texas A&M University-Corpus Christi Texas A&M University-Corpus Christi, often Texas A&M-CC, is one of the states fastest growing four-year universities and the only university in America located on its very own island. ...

Visual

Main article: Patterson-Gimlin film

There have been several alleged photos or motion pictures of Bigfoot. The best-known was filmed by Roger Patterson and Robert Gimlin on October 20, 1967. This film has generated much discussion and debate, even into the present decade. Frame 352 from the film, allegedly capturing a bigfoot mid-stride. ... is the 293rd day of the year (294th in leap years) in the Gregorian calendar. ... Year 1967 (MCMLXVII) was a common year starting on Sunday (link will display full calendar) of the 1967 Gregorian calendar. ...

Problems with audio and not very much visual evidence

Critics note that most audio and/or visual evidence is often of poor quality, making analysis troublesome or even worthless.

References