Sloane’s Viperfish or Chauliodus Sloani has the teeth relatively bigger than the head size id a fish. And it holds World record for the same. The 30 cm long dragon fish has teeth that are over half its length. Living in the deep sea it mostly feeds on small fishes. It migrates vertically. What makes it ugly is its long fang-like teeth and largemouth. Talking about the appearance, the deep sea creature is generally dark silvery blue in colour, however, its colouration can vary between green to silver or black. They have a light organ located in the elongated dorsal fin ray and there are numerous photophores located all along the side of the fish. These are helpful in camouflage the fish from predators lurking below and light also serves to attract prey and also to communicate with potential mates or rivals.
Viperfish have a very low basal metabolic rate, which means they can go for days without food. This adaptation is likely a result of the scarce nature of food in the deep sea.
They are found in tropical and temperate waters throughout the world at depths of up to 9,000 feet (2,800 meters).
Viperfish are considered as a very fierce predator and this fish has a characteristic large mouth as well as fang-like teeth that are very sharp.
They are known to be preyed upon by sharks and some species of dolphin.