Tales of the Loch Ness Monster have floated around the world for centuries. Described as a large aquatic animal or a plesiosaur-like creature, the Loch Ness Monster (also known as "Nessie") has been the subject of numerous amateur and scientific investigations over the years in an attempt to uncover the truth. She is said to have a long neck with a dinosaur-like head, a humped back, flippers and reptilian dark gray skin; her estimated length is anywhere between fifteen and forty feet, with a weight of up to 2,500 pounds.