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All Cryptids

Sea Serpents

The ocean covers 70% of the planet. Most of it is unexplored. These creatures patrol the deep water, surfacing in sailor accounts and sonar readings across centuries.

17 creatures

Akkorokamui

Akkorokamui

A colossal red octopus lurking in Funka Bay, revered by the Ainu as both healer and destroyer.

Eyewitness reportsAsia
Altamaha-ha

Altamaha-ha

Georgia's river serpent, a long-necked mystery lurking in the murky Altamaha.

Eyewitness reportsNorth America
Con Rit

Con Rit

A segmented, armored sea creature with dozens of lateral fins, washed ashore in Vietnam in 1883.

Physical evidence claimsAsia
Globster

Globster

Massive, fleshy, unidentifiable masses that wash ashore worldwide, defying easy explanation until the lab results come in.

Physical evidence claimsOceania / North America / South America / Europe / Asia / Africa
Gloucester Sea Serpent

Gloucester Sea Serpent

Hundreds of witnesses watched a giant serpent patrol Gloucester Harbor for weeks in 1817.

Repeated sightingsNorth America
Grootslang

Grootslang

South African legend says the gods made a creature so powerful they had to split it into elephants and snakes.

Folklore onlyAfrica
Inkanyamba

Inkanyamba

When devastating storms hit KwaZulu-Natal, the Zulu say a giant winged serpent is rising from the falls.

Photo/video claimsAfrica
Mamlambo

Mamlambo

Nine bodies pulled from a South African river in 1997 were all missing their faces and brains.

Eyewitness reportsAfrica
MarrulIllustration coming soon

Marrul

A giant serpent of the Australian interior, thick as a tree trunk, still reported near remote waterholes.

Eyewitness reportsOceania
Megalodon

Megalodon

The largest shark that ever lived went extinct 3.6 million years ago, unless the deep ocean is hiding something.

Debunked/disputedOceania / North America / South America / Africa
Morgawr

Morgawr

A humped sea serpent has been spotted off the coast of Cornwall since the 1900s, sometimes close enough to shore that beachgoers scatter.

Photo/video claimsEurope
Nuckelavee

Nuckelavee

A skinless horse-rider hybrid rises from the ocean around Orkney, and its breath alone can wilt crops and sicken entire islands.

Folklore onlyEurope
Ri

Ri

A marine humanoid reported by fishermen in New Ireland, with a woman's upper body and a fish-like lower half.

Eyewitness reportsOceania
Steller's Sea Cow

Steller's Sea Cow

Hunted to extinction just 27 years after Western science discovered it, some believe pockets of this gentle giant survive in remote Arctic waters.

Eyewitness reportsAsia / North America
Trunko

Trunko

A massive white carcass with an elephant-like trunk that washed ashore in South Africa.

Photo/video claimsAfrica
White River Monster

White River Monster

An enormous gray creature that churned the White River and earned state legal protection.

Repeated sightingsNorth America
Yacumama

Yacumama

Deep in the Amazon, locals say a snake longer than a river is wide guards the waterways.

Eyewitness reportsSouth America

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