You could be right as far as Bigfoot, Louie. I'd like to believe some truth in the stories of sightings though.
Lots of animals were considered myths until found. For instance the platypus, mountain gorilla, komodo dragon, and giant squid were all considered to be hoaxes before they were actually discovered.
Many animals were thought extinct before being rediscovered this century such as the neoglypheid crustaceans, the monoplacophoran molluscs, and, most recently, the Laotian rock rat or kha-nyou.
Remember, bigfoot is often thought to be an extinct Gigantopithecus.
And some animals fall between the two. Here's a short list of "myths" before being found:http://psican.org/alpha/index.php?/2008072996/Cryptozoology/A-listing-of-previously-hidden-animal-discoveries.html
My favorite was mythological reports of a deer that had gills to breathe water and could walk on land. In the 1990's, cryptozoologists finally tracked the creature down. It's the Vu Quang Ox. aka Saola
Does it really have gills on the side of it's face or breathe underwater? Nope. But it does have slits on the side of the face that look like gills and open and close when it breathes, which is where the myth came from. Amazing animals, still shrouded with mystery 20 years later.