26 Mysterious Sea Creatures That Look Like They Belong In a Sci-Fi Movie

We can almost stop looking for extraterrestrials because the ocean has some truly bizarre lifeforms that are basically aliens.


Source: openrov.com
With it’s transparent head that the large eyes look upward through, this fish is one of the strangest ever discovered. Those are not the eyes in the front!


Source: reddit.com
Salps play an important role in carbon cycling because they condense their waste products into carbon-containing pellets which sink to the ocean bottom. This effectively removes carbon from the surface waters.

Source: buzzfed.com
With it’s nail-like teeth in a jaw that can be projected forward, I’m glad these are deep-sea sharks that rarely come into contact with humans.

Sea Spiders

If you thought the ocean was free of spiders, think again! Although they look like spiders on land we are used to, they are not related.
Source: arkive.org


The blobfish may have been voted world’s ugliest animal, but it looks rather like a regular fish when it is in it’s normal environment 4000 feet down in the ocean.

Leafy Seadragon

These slow-moving fish are in the same family as seahorses and rely on their leafy appendages for camouflage and protection from predators.
Source: arkive.org

Atolla Jellyfish

These jellyfish look like a UFO and are pretty alien-like because, like most jellies, they do not have digestive, respiratory, circulatory, or central nervous systems.

Source: geek.com
These territorial fish are usually found hiding inside objects on the seafloor. When they open their large mouths, you might mistake them for the Predator.
Source: arkive.org

Pink See-Through Fantasia

Source: img.rtve.es
This swimming deep-sea cucumber is, as the name suggests, see-through enough to see it’s digestive system.
Source: ocean.si.edu

Venus Flytrap Sea Anemone

This sea anemone is named after the venus flytrap because of the similar shape and they way it feeds by trapping food in it’s “mouth.”

Source: reddit.com
These little micro-animals may be less than 1 mm long, but they can take pretty much anything. They can survive temperatures from almost absolute zero (-457℉) up to 357℉, withstand 1000 times more radiation than most animals, come back to life after being dried out for 10 years, and are the first animals that are known to survive the vacuum of space.

Flamingo Tongue Snail

The spots you see are not actually on the shell, but are part of the snail’s mantle flesh which covers the shell. Many people collect the snails thinking they will have the spots.

Source: newgifs.com
The ribbon eel is a type of moray eel. They all start out as males, but will start to develop female parts as they mature.

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