By  Gurpreet Singh | September 16, 2025

8 Weirdest Deep-Sea Creatures Ever Discovered

Barreleye Fish

This is a transparent-headed fish with upward-facing tubular eyes. These eyes allow it to spot prey in deep, dark waters with astonishing precision.

Image: Canva

Red-Lipped Batfish

This odd-looking fish is recognised by its bright red lips and pectoral fins shaped like legs. It uses them to awkwardly “walk” along the seafloor.

Image: Canva

Bloody-Belly Comb Jelly

This jellyfish has a bioluminescent body with a glowing red stomach. It is specially adapted to hide prey inside and confuse predators in pitch-black waters.

Image: Canva

Giant Tubeworms

These are massive white worms found near hydrothermal vents. They survive without sunlight by feeding on symbiotic bacteria that convert chemicals into energy.

Image: Canva

Sea Cucumber

These are strange, squishy creatures resembling underwater slugs. They often expel their internal organs as a bizarre defence mechanism against potential predators.

Image: Canva

Deep-Sea Hatchetfish

The hatchetfish has mirror-like scales and glowing photophores. This camouflage allows it to blend perfectly within faint beams of ocean light.

Image: Canva

Giant Isopod

As the name suggests, the giant isopod is a huge, armour-plated crustacean resembling a giant woodlouse. It survives in extreme depths by scavenging dead whales and fish remains.

Image: Canva

Dragonfish

These are ferocious predators with fang-like teeth and a light-producing barbel. They lure prey in the total darkness of the ocean’s midnight zone.

Image: Canva

Next: 7 Most Poisonous Frogs and Toads Found in the Wild
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