A bizarre , ghostly angle with wing - similar fins has been spotted graciously gliding through the ocean at deepness of8,143   metersbelow the airfoil , bankrupt the humankind record for the deepest documented living Pisces . What ’s more , the animal , which researchers believe is likely a type of snailfish , could be a species previously unknown to science .

The find was made during a calendar month - long international expedition to the Mariana Trench . Located in the western Pacific Ocean near the Mariana Islands , the trench is the deepest part of our ocean , pass on staggering depth of almost 11 kilometers . The ocean trip , called the Hadal Ecosystem Studies ( HADES ) expedition , was convey from the Schmidt Ocean Institute ’s research vessel , Falkor , under the direction of a duo of scientist from the University of Hawaii .

The squad deployed five mysterious - sea vehicles , called landers , at more than 90 dissimilar location along the oceanic abyss , pasture between deepness of 5,000 m ( 16,404 ft ) and 10,600 meters ( 34,777 ft ) . The research worker chose this graduated approach shot , rather than perfect in on just the deepest character , because it assist us understand the family relationship between life and geological mental process .

“ Many study have rushed to the bottom of the oceanic abyss , but from an bionomical view that is very limiting , ” co - primary scientist Dr. Jeff Drazen explicate in anews   release . “ It ’s like try on to understand a mountain ecosystem by only look at its summit . ”

Prior to this excursion , the world disk holder for the deepest surviving Pisces was a specie of seasnail , the Hadal SnailfishPseudoliparis amblystomopsis . Seventeen penis of thissociable specieswere filmed a few eld back in theJapan Trench , also in the Pacific Ocean , at depths of 7,700 meter ( 25,262 foot ) . More than360 different speciesof the polliwog - like , jellylike Liparis liparis have   been described , and each deep deep investigated so far seems to host its own species .

Thanks to some overwhelmingly stinky lure strategically target on the camera - laden landers , scientists now be intimate that these Pisces dwell much deeper than that . They managed to recognise a weird - bet suspect snailfish at 8,143   meters , which sport the typical tapering body and eel - alike buns characteristic of this class . However , researchers believe it could be a previously strange coinage because it did n’t seem to resemble any other snailfish on platter .

“ It is implausibly fragile , and when it swims , it looks like it has stiff tissue paper report floating behind it,”saidDr . Alan Jamieson from Oceanlab . “ And it has a unearthly nozzle — it looks like a cartoon dog snout . ” But without a specimen to examine at the surface , the investigator can not be sure that it is a fresh mintage .

Although life always seems to happen a elbow room , this could be the thick that scientist discover go fish . That ’s because it lie in close to the deepness limit that scientist think fish can survive—8,200 meters — which is determined by the being ’s degree of a chemical calledtrimethylamine oxide(TMAO ) . TMAO forbid proteins from becoming colour as a result of the intense pressure experienced in the cryptic ocean , but there is only so much of this molecule that mobile phone can deal with .

[ ViaSchmidt Ocean Institute , BBC NewsandNew Scientist ]