Cryptozoology, the study of "hidden animals", concerns itself with animals whose existence has not yet been recognized by mainstream science. These animals, known as "cryptids", are often the stuff of legends, written off as myths or elaborate hoaxes. Some famous cryptids are Bigfoot, the Loch Ness Monster, and El Chupacabra, all of which remain shrouded in mystery. However, many animals widely recognized today were once among these cryptids. The following ten creatures were once dismissed by science as products of folklore, imagination, or deception, but are now formally recognized as their own species.
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