Bigfoot, rather than being an unknown reclusive animal, is actually a paranormal inter-dimensional creature. That is why the remains or fossils of one has never been found, and never will be. That is also why footprint tracks of a Bigfoot (real tracks that is) sometimes simply disappear, as though the creature suddenly dematerialized.

There are a number of reports where people have shot a bigfoot with rifles to no avail. One lady fired a shotgun point-blank into the chest of one. It disappeared right in front of her in a blinding flash of light. This is not the behavior of an animal, but of a spiritual entity.
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According to scripture and rabbinical literature demons and evil spirits tend to inhabit wild or desolate places. The Jews had a word, Se’irim which means “hairy demon” Apparently Bigfoot has been around since ancient times. The fact that Bigfoot lives in remote wild regions suggests his demonic nature.

The behavior of Bigfoot reveals his true nature. He instills fear. He has a horrible odor, something that is often associated with the presence of an evil spirit. Bigfoot has an unholy interest in women and children. He is attracted to the sound of children playing and has been reported to attempt to lure young children away. There are some accounts of women being raped by these creatures. The unclean interest that Bigfoot is reported to have in women harks back to the account in Genesis where demons desired sex with women.
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The children of these unions were called the Nephilim. These Nephilim were reported to not only be extremely tall (like Bigfoot) but also to be evil and perverted. They were warlike, uncontrollable, wild, and according to Jewish apocryphal writings, had a propensity for sex with animals. What relationship the Nephilim are to Bigfoot is unclear. There is, however, a definite link in behavior which alludes to the demonic characteristics of Bigfoot.