Some creatures, such as the dragon or the griffin, have their origin in traditional mythology and have been believed to be real creatures. Others were based on real creatures, originating in garbled accounts of travelers' tales; such as the Vegetable Lamb of Tartary, which supposedly grew tethered to the earth (and was actually a type of fern). The traditional unicorn may have come from garbled stories about the rhinoceros and/or narwhal. Examples of the legendary creatures can be found in medieval bestiaries.
Conversely, some creatures downplayed as just storytelling, have been rediscovered and found to be real in recent times, such as the giant squid. In Africa, Natives of the Congo told European visitors of an animal that looked like a cross between a zebra and a giraffe. While the visitors assumed the stories were just folk tales, in 1901, Sir Harry Johnston brought back pelts that proved the creature, which we now call the okapi, was real.
Often mythical creatures are chimeras, a combination of two or more animals. For example, a centaur is a combination of a man and horse, a minotaur of a man and bull, and the mermaid, half woman and half fish. These were not always intended to be understood as literal juxtapositions of parts from disparate species. Lacking a common morphological vocabulary, classical and medieval scholars and travelers would attempt to describe unusual animals by comparing them point-for-point with familiar: the giraffe, for example, was called cameleopard, and thought of as a creature half-camel, and half-leopard. The leopard itself was so named as it was historically believed to be a half-lion (Latin: "leo") and half-panther (Latin: "pardus"). This etymology has been kept until the present day, despite its zoological inaccuracies.
Many legendary creatures appear prominently in fantasy fiction. These creatures are often claimed to have supernatural powers or knowledge or to guard some object of great value, which becomes critical to the plot of the story in which it is found. Dragons, for instance, are commonly depicted as perched on a gleaming hoard of gold which becomes the target of adventurers.
Other legendary creatures are thought to exist even today, (these monsters are called modern monsters or monsters that are supposed to exist) including Bigfoot, Mothman, Yeti, Yowie, Yeren, the Jersey Devil, Chupacabras, the Loch Ness Monster, and even Space aliens. These are often called cryptids and are studied in modern times by cryptozoologists, who working from the example of legendary creatures rooted in reality like the Vegetable Lamb mentioned above, attempt to discover what, if anything, is the real-life inspiration for these animals. Some, like the aforementioned giraffe and, much more recently, the giant squid, have been proven to be real creatures.
Media monsters are monsters from books and movies. These include Dracula, Frankenstein's Monster, Godzilla, King Kong, Mothra, Werewolves and Zombies.
Please add a source link when using material directly from another website. ~CTD
http://www.absoluteastronomy.com/topics/Legendary_creature
