A legendary creature is a type of supernatural entity that is described in folklore, and may be featured in historical accounts before modernity, but has not been scientifically shown to exist. In the classical era, monstrous creatures such as the Cyclops and the Minotaur appear in heroic tales for the protagonist to destroy. Other creatures, such as the unicorn, were claimed in accounts of natural history by various scholars of antiquity. Some legendary creatures are hybrid beasts or Chimeras.