...there's actual scientific evidence for the existence of clandestine hominids.
There are bones, it's a common misconception that no such fossils exist:
http://en.wikipedia.org/wiki/Gigantopithecus
David Attenborough has openly admitted he believes such animals exist. Jane Goodall, pioneering chimp researcher, openly professed her belief in the existence of at least a half dozen extant hominid species during a radio interview.
The only academics actively researching the Bigfoot/Sasquatch/Yeren have made very strong cases for the existence of such animals. Dr Jeff Meldrum has even written an excellent book making the scientific case for "Bigfoot".
The main reason the scientific community hasn't yet made a case for the existence of Sasquatch is because a majority of Americans still believe in the Noah's Ark version of history.
End of thread hijack.
The Luke
Here's all the proof you'll ever need of the existence of the mighty Bigfoot -
It's a whole lot more believable than some really old bed cloth with an image scorched into it. And I'm an atheist, so only go there if you want to get mindfucked. Later.