The snake was near death--it was cold and lethargic.
It looks like someone dumped the animal in the park--perhaps after realizing how big the reptile was getting.
The Parks department thinks it's a Burmese Python--originally from Southeast Asia.
They're bred and sold in the U-S, but are considered "threatened" in some countries such as Burma, Thailand, and Indonesia.
The mammoth snakes grow to over 20 feet long and can live more than 25 years.
The Parks department reminds New Yorkers that pets should not--under any circumstances--be abandoned in city parks.