Loch Ness Monster (n. Lock Ness MON-stir) Scotland's famous Lake Monster, also known as Nessie. This creature inhabits the largest body of freshwater in Scotland, Loch Ness. The majority of sightings involve a similiar Sea Serpent creature: a huge gray or black animal with two or three visible humps and a long, thin head. This description seems to suggest some similiarity in the Loch Ness Monster to an pre-historic plesiosuars.

The Loch Ness Monster has perhaps the largest body of evidence of any cryptid. Numerous photos and videos have been taken of animal-like shapes in Loch Ness by researchers and casual observers alike. A patrolling boat using sonar also indicated some unidentified mass in the waters of Loch Ness in 1972.

Like Bigfoot and Yeti, the continuing persistance of Loch Ness Monster sightings throughout the years suggests that there is not just one monster, but an actually breeding group. Many exist to explain Nessie: some argue the creature is a manatee, others believe the creature to be some type of amphibian long thought to be extinct.