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This article contains information relating to a hoax. According to Cambridge dictionary a hoax is "a ​plan to ​deceive a ​large ​group of ​people; a ​trick."

Sea serpent

Hydrargos, Hydargos, Hydragos, and several other spellings, was a sea serpent skeleton created by Mr. Albert Koch in 1845.


Made from the combined skeletons of several Basilosaurus possibly Pontogeneus, a species of presumed extinct prehistoric whale, Koch was enthralled to exhibit the "sea serpent" to the public in the Apollo Saloon for 25 cents. The 114-foot long skeleton could not have been a real sea serpent because the teeth were cetacean, which had double roots, in the corresponding double sockets. Some teeth were immature, some very old, which has never been heard of in fossilization. It was even thought by some to be the biblical "Leviathan". Koch proclaimed that he found the skeleton in Alabama.

Hydrarchos is not the only sea serpent proven to be a hoax. Lots of other sightings have also been debunked over the years, including the world's most famous proof of the Loch Ness Monster or "Nessie".

In Popular Media[]

  • The Hydrarchos skeleton was shown in the credits of Godzilla: King of the Monsters.