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An encyclopedia of cryptids & legendary creatures

Every legend, traced to its source.

From the Loch Ness Monster to the Popobawa of Zanzibar, Cryptid Index tells the story behind each creature: the original sightings and folklore, what the evidence actually shows, and where the legend came from. Every entry is researched from documented sources and cites them.

85sourced entries6creature types2026every entry revised

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The most famous mysteries

Four of the best-known cryptids in the world, and what nearly a century of searching has turned up.

Loch Ness MonsterScotlandLoch Ness MonsterNessie is the world’s most famous cryptid. Here is how the modern legend began in 1933, the hoaxes that shaped it, every…Bigfoot (Sasquatch)North AmericaBigfoot (Sasquatch)Bigfoot, or Sasquatch, is North America’s famous hairy giant. Here is how the names began, what the 1958 tracks and 1967…MothmanWest VirginiaMothmanMothman was first reported by two couples near Point Pleasant, West Virginia, in November 1966. Here is the original…KrakenNorth AtlanticKrakenThe Kraken grew from medieval Norse sea monsters and an 18th-century bishop’s natural history into a real animal: the…

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Explore by type of creature

Lake & River Monsters14 entriesSea Serpents & Ocean Giants15 entriesWinged Things & Strange Skies16 entriesWild Men & Ape-Men9 entriesBeasts, Big Cats & Lost Animals17 entriesShapeshifters, Spirits & Visitors14 entries

Case closed

Mysteries that were solved

Some legends have real answers. These are four of our favorites, where photographs, research or a confession settled the question.

TrunkoRotting whaleTrunkoTrunko was a 47-foot white, “furry,” trunked carcass that washed up at Margate, South Africa, in the 1920s. Here is the story, the…Air Rods (Skyfish)Insects on cameraAir Rods (Skyfish)Air rods, or skyfish, are fast, finned shapes seen only in photos and video. A 2005 experiment in China with nets and surveillance…Ameranthropoides loysi (De Loys’s Ape)A spider monkeyAmeranthropoides loysi (De Loys’s Ape)De Loys’s ape is a 1920 photograph of a dead “ape” from the Venezuela–Colombia border, announced in 1929 as a new American ape.…HodagDeliberate hoaxHodagThe Hodag was a hoax: a wooden monster worked by wires, created by Eugene Shepard of Rhinelander, Wisconsin, in the 1890s. Here is…

The full index

All 85 creatures, by type

Lake & River MonstersSea Serpents & Ocean GiantsWinged Things & Strange SkiesWild Men & Ape-MenBeasts, Big Cats & Lost AnimalsShapeshifters, Spirits & Visitors

How we work

Folklore taken seriously. Evidence taken honestly.

Cryptid Index is written for curious readers who want the real story, not just the spooky version.

Sourced

Every entry is built from published accounts, scholarship, museum records and original documents, with numbered references you can check yourself.

Honest

Where a sighting was a hoax, a misidentified animal or a later invention, we say so, and we explain how the legend grew.

Corrected

When we find an error, we fix it and note the change at the end of the entry, so readers know what was revised and why.

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A–Z

Alphabetical index