Please consider "Sasquatch myth or reality" as a project. The Bluff Creek California Friday, October 20, 1967, Patterson and Gimlin film of "Patty" could be one target perhaps.

Great idea!!

Is there an ET connection? Are they high tech entities?

Was Sasquatch engineered to have control over our human senses...mind speak, cloaking, shape shifting, intense odor, ability to induce extreme fear, bone rattling roars and screams, giant muscular appearance, paralysis, time loss, and more.

Good ET's or Bad?

The appearance of Bigfoot entities near nuclear missile sites has been discussed by
Stan Gordon. He has almost 60 years in researching
paranormal activity in the area of : Bigfoot, UFOs, and cryptids.

From a second perspective; while, I am on the fence about the intentions behind Ra, he/it does have some interesting words on this history of Bigfoot in "The Law of One Book I"
--

Q) Is there any particular race of people on our planet now who were incarnated here from 2nd density?

RA): There are no second density consciousness complexes here at this time. However, there are 2 races which use the second-density form. One is the entities from the planetary sphere Maldek. These entities are working their understanding complexes thru a series of what you would call karmic restitutions. They dwell within your deeper underground passageways and are known to you as “Bigfoot.”

Q) Where are these body complexes (Bigfoot) located?

RA): These body complexes of the 2nd race dwell in uninhabited deep forest. There are many in various places over the surface of your planet.

We would not call them Bigfoot, as they are scarce and are very able to escape detection. The first race is less able to be aware of proximity of other mind/body/spirit complexes, but these beings are very able to escape due to their technological understandings before their incarnations here. (Law of 1 : p111)

Very interesting, There is truly a great mystery in Sasquatch. Many believe they are Nephilim, giant entities described in the Bible.

Genesis 6:4
King James Version
"4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown."....

Genetic testing confirms the legendary Bigfoot is a human relative that arose some 15,000 years ago — at least according to a press release issued by a company called DNA Diagnostics detailing supposed work by a Texas veterinarian.

The release and alleged study by Melba S. Ketchum also suggests such cryptids had sex with modern human females that resulted in hairy hominin hybrids, but the scientific community is dubious about her claim.

"A team of scientists can verify that their five-year long DNA study, currently under peer-review, confirms the existence of a novel hominin hybrid species, commonly called 'Bigfoot' or 'Sasquatch,' living in North America," the release reads. "Researchers' extensive DNA sequencing suggests that the legendary Sasquatch is a human relative that arose approximately 15,000 years ago."

For her study, Ketchum obtained three "whole nuclear genomes from purported Sasquatch samples. The genome sequencing shows that Sasquatch MTDNA is identical to modern Homo sapiens, but Sasquatch NUDNA is a novel, unknown hominin related to Homo sapiens and other primate species." (Mitochondrial DNA, or MTDNA, is the DNA that resides in the cell's energy-producing structures, and is typically passed down from mothers, while nuclear DNA, NUDNA, resides in the cells' nuclei and is passed down from both parents to offspring.)

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"Our data indicate that the North American Sasquatch is a hybrid species, the result of males of an unknown hominin species crossing with female Homo sapiens," the statement reads. [Infographic: Tracking Belief in Bigfoot]

Any proof?

It's a fascinating theory.

Modern human females and Fallen Angels (Bad ET's ?)