What Animals Lives At The Bottom Of The Mariana Trench?

What Animals Lives At The Bottom Of The Mariana Trench?

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The Marianas trench is bar none, the deepest part of the ocean. Just how deep? Imagine this, if
you somehow throw mount Everest into it, the top of the mountain wouldn’t even come close
to breaking the surface. At more than 10,000 meters deep, it’s hard to imagine that any life
could survive down there. But the fact is, animals thrive in that habitat. Today we will be
looking at 10 of the most amazing inhabitants of the marianas trench. Number one will literally
eat anything that it comes across so better stay tuned for that animal.

Number 10. The Dumbo Octopus
It's an octopus that Walt Disney would've invented for one of his animated films. It's the dumbo
octopus, which has cute little Dumbo-the-Elephant-like ears atop its 30-centimeter body. This
adorable animal also has precious wiggly eyes and a delightful puckered mouth that only add to
its cartoonish looks.
This octopus may look dainty, but it's actually durable enough to make it the deepest dwelling
octopus known to science. It prefers to make its home all the way down between 2,987 and
3,962 meters.
When you think of octopuses, you probably envision a bulbous mantle sprouting eight dangly
tentacles. The dumbo, however, falls into a category of so-called umbrella octopuses with
webbed tentacles that give them, well, an umbrella appearance. The effect is something like a
starfish with a balloon head emerging from the center.
Unlike most octopuses, this species doesn't chomp and grind food with a beaklike mouth.
Instead, it simply swallows its prey whole. So if you happen to be on the dumbo octopus's
menu, it probably doesn't seem nearly as cute.

Number 9. The Deep Sea Dragonfish
If the dumbo octopus is one of the most harmless-looking ocean animals, then the deep-sea
dragonfish is the exact opposite. With oversized teeth and a face that only his mother would
love, the dragonfish is an assassin of the unfathomable deep. Although it's a fish, it has no
scales, but instead a slippery, slimy skin that resembles an eel's.
Dragonfish, which are about 15 centimeters long, prefer to swim between 215 and 1,850
meters under the surface, where the waters are lightless and cold. Like many deep-water
creatures, this species relies heavily on bioluminescent body parts, which leverage internal
chemical reactions to produce an eerie glow.

The fish may use this glow to communicate with other fish or to provide camouflage. It also
dangles a lighted barbel, or whiskerlike protrusion, from its lower jaw. Other fish are attracted
to the barbel, mistaking it for an easy meal. But in a flash, the dragonfish gets lunch instead.
Some dragonfish have also evolved the ability to produce a red glow — an unusual color of light
for ocean dwellers. They may use their reddish hue to signal their brethren, but it's more likely
that they're using the red lamp to illuminate prey just before launching an attack.

Number 8. The Barrel-eye Fish
Light is a rare and precious thing in the Marianas trench. The ability to detect even a glimmer of
sunshine can mean the difference between catching a meal and being one. So creatures of the
trench, like the barreleye fish, evolve unusual features to use shreds of light to their advantage.
How unusual? Well, for starters, this fish has a transparent head. Inside that head are two
sensitive barrel-shaped eyes which are most frequently pointed upwards, allowing the fish to
see silhouettes of its prey. As for the clear head, scientists think this feature may simply allow
the fish to collect just a little more light, which may give this strange animal a bit more of an
advantage over its competition.
The barreleye fish wasn't even known to humans until 1939, when it was pulled from its habitat
762 meters below the surface. Even then, the specimens were less than ideal because they
collapsed in the pressure changes from deep to shallow.
Now that researchers have access to deep-diving remotely operated vehicles equipped with
lights and cameras that can withstand the pressure, they're able to observe the barreleye more
closely. Yet this odd fish still holds many secrets, leaving scientists puzzling over its lifecycle and
reproduction patterns.
Number 7. The Benthocodon