I'm shocked there isn't a thread for this yet. http://en.wikipedia.org/wiki/Jersey_Devil
I've seen the Monster Quest episode on this. Was kind of an eye opener when they mentioned WHERE the Pine Barrens were since I used to live in Washington Township New Jersey.
And even after I moved to PA would be riding back from the Jersey Shore at night. For good or bad nothing came of it.
So what are anyone's theories on what exactly the Jersey Devil is? Unknown creature, extraterrestrial, the new theory of Ultraterrestrials, or missidenitification?
If it's the last one that would mean it's from another plane of existance. If the legend is literal fact then it could be this. Mother Leeds is reported to have said something like "If this child be born let the Devil take it" or as Wikipedia quotes "let it be the devil."
I don't see any normal explanation for why this creature exists (putting aside missidentification.) For it to be naturally evolving on Earth there would have to be a population and we would have found it by now. I've only heard of one being seen at a time. Also if it's the same one it would be over 190 years old. Nothing we know of lives that long.