Do you believe chimpanzees really do exist? If yes, did you believe that chimpanzees really existed before 2004? If yes again, that would impossible to believe if fossilized remains are the benchmark by which existence is measured.
The first fossilized remains of a chimpanzee was not found until September 2004 by Dr. Nina Jablonski in the Rift Valley of Africa. Let's compare the two "creatures". It's estimated that ~250,000 chimpanzees live in Africa, their average lifespan is about 35 years, and they have been in existence ~5-8 million years. Let's be conservative, use 5 million years, and if these estimates are correct, let's do the math. (5,000,000yrs x 250,000 chimps)/40 yr lifespan= 31,250,000,000 billion chimps.
So, ~31 billion chimpanzees have lived in Africa yet not one fossilized remain was found until late 2004. Moreover, we all suspect that sasquatches are far more rare than chimpanzees don't we?
Armed with this information, in my opinion, that leaves us with the real question which is, "What clear-thinking person would ever expect fossilized remains of a sasquatch to be found?"