Big old fogie
This near-prehistoric member of the sixgill shark species can be categorised in the world’s top ten largest sharks. It is known to swim many of the world’s oceans, including the Pacific and Atlantic.
How big can it get?
The bluntnose is the largest of the sixgill species, and has been officially recorded at 4.5 metres (14-feet) in length. Other reported sightings suggest that it is capable of growing longer than 6 metres though.
What does it eat?
This monster of the deep will happily dine on fish, including large salmon and smaller anchovies, as well as crustaceans and molluscs.
How does it hunt?
Despite being generally sluggish, it can really up the ante when it comes to feeding time and has little trouble chasing down a particularly tasty morsel. The shark itself is light-sensitive so tends only to emerge from the deep after nightfall, when it can choose from any number of midnight snacks.
How dangerous is it?
The reclusive bluntnose is fairly indifferent to humans, with some divers having swum beside the colossal fish. This may be a result of it having little human-interaction due to its deep sea dwelling.
How many are left?
The bluntnose is considered a threatened species, although calculating how many exist is made difficult by its secluded nature.
The presence of six gills, a feature common with Jurassic era fish, makes this one of the oldest sharks still in existence. Its translucent eyelid and dorsal fin position (closer to the tail) have more in common with prehistoric shark fossils than modern-day sharks.