Mariana trench is the deepest trench in the world. It has been recorded to go as deep as 10,994 meters. To put it into perspective, we would not be able to see the peak of the tallest mountains in the world if they're inside this trench. In this dark and obscure trench, many animals have survived without changing for decades. It makes one think what these animals are that humans have been discovering that succeed to survive without much food and light?
Most of these fish have developed different systems to help them survive like phosphor organs,which are enzymes that can digest different types of foods. At this depth, the animals living there are mostly unknown and discoveries of these new species are made almost every day. Almost 95% of the deep abyss is unknown to us, regardless, we want to know what these deep-sea living creatures look like.
13 The Goblin Shark
This shark was discovered in 1898 by American ichthyologist David Starr Jordan. The shark's size has been reported between 3 and 4 meters and lives under 30 feet under the water's surface. They are sometimes called a “living fossil”, due to their link with the Mitsukurinidae family, a 125 million years old lineage. They are nothing special to look at when you first lay eyes on them but that changes when people see the set of teeth this animal has. This animal can detach its upper jaw from its skull, similar to a snake, to eat larger prey.
12 Grimpoteuthis or Dumbo Octopus
This umbrella octopus was discovered in 1932. Its usual size is between 20 to 30 cm, but the biggest specimen ever recorded was 1.8 meters. This extremely rare octopus floats around the ocean looking for food. It moves by creating pulses with its arms, by pulling(firing) water with their funnel, or by shaking their "ears" as fins. They can use each of these techniques separately or even simultaneously to move faster.
Found in deep, lightless water, the male Caulophryne has a peculiar way of surviving by attaching itself to a female Caulophryne like a parasite. This fish was discovered way back in 1912. With threatening looking spikes found all over its body, it is doubtful that this has many predators.
This relative of the sea-cucumber lives deeper than 1,000 meters. This animal possesses a range of tubular merged feet surrounding a big part of their extremity. It uses this range as main locomotive device. The animal is also lined with a ruffle which serves essentially as a stabilizer, but can also be used during slow movements. With it's appearance, it slightly looks like a jellyfish/sea-cucumber hybrid.
9 Harp Sponge
This carnivorous sponge lives in the deep abyss at around 3,500 meters and was discovered in 2012. It can catch its prey, wrap it in a type of membrane and digest it all at once. It does this instead of absorbing particles and bacteria through its body, as most of the other sorts of sponges do. It can also reach 37 centimeters long in size.
As another type of angler-fish like the Caulophryne, the male is a lot smaller than the female. The female can grow up to 60 centimeters while the male doesn't grow much bigger than 4 centimeters. This creatures hides in the deepest and coldest parts of the ocean where they wait to jump on their prey which mostly consists of shrimp. It has a small source of natural light emanating from an antenna situated on its head.
7 Spook Fish
Its name comes from its barreled, tubular eyes which allow the animal to look above it without raising its head. The biggest size of this creature ever reported is about 50 centimeters, but most of them average around 20 centimeters. It lives between 400 and 2,500 meters deep. This tiny creature with a transparent head belongs to the Opisthoproctidae family.
6 The Common Fangtooth
This fish lives in depths between 2,000 to 5,000 meters. The younger fish usually live closer to the surface while the adults venture deeper into the waters. This toothy fish can grow up to 18 centimeters. In the depth of the ocean, food is so rare that it is able to eat everything and anything it comes across. Proportionally speaking, it is the animal that possesses the biggest teeth in the world and it cannot even completely close its jaw. Contrary to the other species that live in these depths, it is powerful and strong and is a true predator.
5 Telescope Octopus
The name of this octopus comes from it's tube-shaped eyes. This octopus possesses rotary eyes situated on long mobile stalks, allowing it to have an extraordinary vision. It was discovered back in 1885 and like most octopi it has eight arms. Its transparent body gives it a mysterious ghostly aspect, which is rather cool. Its size is about 20 centimeters and it lives in the tropical waters of the Indian and Pacific oceans and can be found as deep as 1,500 meters in the water.
This fish lives in in deep salty water at a depth of 1,000 meters. Fish living at this depth have developed light producing organs so that they are not in complete darkness. These special organs, called phosphors, flash on and off constantly. The phosphors are used to guide it and scare opponents in the dark. In its mouth, 350 phosphors are there t help it properly feed itself. Even the biggest of fishes don't risk coming close to it because the viperfish is capable of swallowing prey that are much larger than itself. Furthermore, it is equipped with long sharp teeth which give it a threatening, and not very attractive, appearance.
3 Frilled Shark
This shark lives around 1,500 meters deep in the ocean. The luminescent, phosphor flashing lights, are situated on its barbel which is near its 'whisker' area. These can be used for mating as well as for hunting and attracting prey. It has around 300 teeth shaped like tridents aligned in 25 rows. Its size is usually around 1.7 meters for males long and 2 meters for females. Scientists also think that this species beats records regarding gestation among the sharks which is three and a half years.
2 Scaleless Dragonfish
This fish, with an alien look, produces its own light thanks to its small twinkling billy goat 'beard' situated under its small head. It has been caught all around the world because it is mostly situation around 50 to 200 meters deep in the ocean. It can venture deeper yet, but doesn't usually go deeper than 1,000 meter.
1 Hirondellea Gigas
This animal was collected in 2009 in the Mariana Trench's Challenger Deep. Its size is about 5 centimeters, making it almost twice the size of their siblings, the shrimp. The deep water shrimp has been collected as far as 10,000 meters deep. Due to the lack of food at this depth, the animal has adapted and developed certain enzymes that can allow it to process wood as a source of nutrition.