Paranormal creatures, often called cryptids, are animals and entities that cannot be scientifically proven to exist. Examples include the yeti, the Loch Ness monster, ghosts and werewolves. The study of these paranormal creatures is called cryptozoology.
Some paranormal creatures are very unlikely to exist naturally, like unicorns or fairies. However, some creatures previously considered mythical have been found. For example, the coelacanth is a fish that scientists believed was extinct until a South African museum curator caught one in 1938. Cryptozoologists believe that several other paranormal creatures currently believed to be mythical may also exist, but that proof is prohibitively difficult to secure due to their rarity and remote habitats.