Odd, I don't recall "categorically stating" that "there is no way that a particular animal exists...". Instead, I was talking about "proving a negative" in regards to Sasquatch "not existing". It's not the disbelievers responsibility to prove that Sasquatch does not exist as that is impossible.
As to the Lesula monkey, my only question is "where was it discovered?" Oh yes, in the forests of the DRC, not a very well populated place.
Now, moving on how about you stop straw manning my points and respond to what I'm actually saying? It makes for a much more well reasoned discussion when people respond to what is actually written instead of making things up. I never said anything about the impossibility of identifying new species. This happens all the time throughout the world, particularly in areas that are not well explored such as the jungles of Africa, deep sea, deep underground, etc. It's part of the scientific process. Someone thinks they found a new species of animal, they obtain a specimen of that animal, that animal is studied to determine it's genetic makeup and a determination is made to see if it's a new species and the classification is done (order, kingdom, family, and all that). Sasquatch is stuck at step one and has been stuck there for centuries. Couple that with the fact that sasquatch is supposed to inhabit areas where modern humans have been living for centuries makes the likelihood of it existing without a human EVER being able to find a body to be very small, miniscule really. Now before you go off the handle again, I'm not definitively stating that they do not exist. I have no proof of that (as I said earlier you can not disprove its existence).