The Yeti crab or Kiwa hirsuta has silky blond bristle like hair where it grows bacteria and then eats it. It is found very deep beneath the sea and that is why humans don’t know much about it.
Pacu is a fish from the piranha family known for biting testicles of unaware swimmers and bathers. It is often called “the ball-cutter”. The fish found in the Papua New Guinea is capable of castrating its victims and obviously cause immense amount of pain.
Electric Eel is a knifefish and not an eel species. Electric Eel can generate 600 volts of electricity. Shocks from an electric eel can stop the heart of a person. Though there are mostly not deadly to humans, the shock may make the person too weak for some time to be able to swim to the surface, and eventually die of lack of oxygen.
Star-nosed mole is the only mammal that can sniff under water. Their most distinctive feature is their snout where there are 22 tentacles that are incredibly efficient at catching prey. It almost looks like they have a small octopus mounted on their head. Their tentacles have high sensitivity and enables them capture of worms, insects and crustaceans.
It is a mammal that looks surprisingly similar to Yoda. Their eyes are of the same size as their brain and are impossible to rotate, but they can rotate their neck to 180 degrees.
Aye aye is a mammal that looks like destructive gremlin to a normal person and rodent to a scientist is actually a species of lemur. It is a very small species that barely measures up to 17 centimeters in length.
Blobfish flesh has density lower than that of water, which allows them to float just above the seabed without practically spending energy. They only found at the great depths of the sea. Their body becomes misshapen and ugly when brought out of high pressure of the deep sea. It is found so deep in the sea that we know very little about it.