Also known as the Beast of Bodmin Moor.
There have been repeated sightings of a phantom wildcat and reports of it slaying livestock and cattle.
It is reportedly the size of a panther however experts say the climate and food supply on Dartmoor are not big enough to maintain any animal that size.
One hypothesis is that wildcats are living on Dartmoor after escaping or being dumped by zoos and private collectors.
But in 1995 the Ministry of Agriculture, Fisheries and Food carried out an investigation of these claims and found there was no verifiable evidence to support them.
Less than a week after the government’s report was published though, a boy was walking by the River Fowey when he discovered a large cat skull.
Measuring about 4 inches (10 cm) long by 7 inches (18 cm) wide, the skull was missing its lower jaw but had two sharp, prominent canines that suggested that it might have been a leopard.