For whatever reason, bigfoot don't seem to want to be all buddy buddy with humans, so a lot of times the only chance you get to see one is at a distance. It can be hard to determine what you're looking at sometimes.
Some images were posted recently by bigfooter Stacy Brown that have people perplexed as to what it actually is. It really does look like some sort of primate squatting down, but is it an optical illusion?
One thing bigfoot researchers are known for is arguing with one another. It turns out this has been going on a very long time. One of the most famous historic bigfoot feuds took place between Grover Krantz and Peter Byrne.