Top 9 Bizarre Sea Creatures That Actually Exist

OT Staff & Waquar Habib

Goblin Shark

Known as a living fossil, the Goblin Shark has a flattened snout and deeply protruding jaws, giving it a prehistoric and eerie appearance.

A shot of a goblin shark | melissacristinamarquez/instagram

Barreleye Fish

This deep-water fish has a transparent head and upward-facing, tubular eyes that can rotate—perfect for spotting prey from beneath.

A Barreleye Fish | katherinequinnillustration/instagram

Vampire Squid

Living in oxygen-poor deep waters, the Vampire Squid has cloak-like webbing and glowing organs and feeds on marine detritus.

A shot of a Vampire Squid | _sea_watch_/instagram

Frilled Shark

This rare, eel-shaped shark retains primitive features and rows of needle-like teeth—the result of 80 million years of evolutionary consistency.

A close-up of a frilled shark | sharkguardian/instagram

Blobfish

Adapted to high-pressure depths, the Blobfish’s gelatinous, sack-like appearance is actually perfectly suited to oceanic conditions—its iconic “melting” look appears only when brought to the surface.

A peculiar looking blobfish | underwaterstuffs/instagram

Dumbo Octopus

Named for its ear-like fins, this cephalopod glides gracefully near the seafloor, using fins rather than tentacles for movement.

A shot of a Dumbo Octopus | Wikimedia Commons

Yeti Crab

Discovered near hydrothermal vents, the Yeti Crab possesses hairy pincers covered with symbiotic bacteria that detoxify toxic minerals, which it then consumes.

A shot of a Yeti Crab | Wikimedia Commons

Sea Pig (Enypniastes)

This transparent, pink sea cucumber resides deep on ocean floors. It moves slowly across sediment, filtering nutrients and leaving bizarre, mysterious trails.

A look at the Sea Pig | nautiluslive/instagram

Stygiomedusa gigantea

A deep-sea jellyfish without tentacles, its four curtain-like arms can reach 30 feet and form deadly traps for plankton and small fish.

A shot of the giant phantom jelly (Stygiomedusa gigantea) | mbari_news/instagram

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A Rockhopper penguin mid air | steffen.foerster.photography/instagram
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