With their extraordinarily foresighted tentacles and elusive conduct , bigfin squids are arguably one of the most tempting beast of the deep sea . Sightings of live someone in the wild are exceedingly rare , but an increase number of observance have been made in late geezerhood thanks to procession in deep - ocean geographic expedition applied science .
Bigfin calamary go to the genusMagnapinna , which means “ great fin ” in Latin . There are just three described mintage – M. atlantica , M. pacifica , andM. talismani – but there are likely to be many more out there in the ocean , as yet undiscovered .
Their name allude to the turgid , fondness - mould fins that sit on top of their head and avail them move around the sea .

Another bigfin squid, spotted at a depth of 1,961 meters (6,434 feet) in the Northern Gulf of Mexico during an expedition by the NOAA in 2012.Image credit: NOAA Ocean Exploration
How Big Is the Bigfin Squid?
Along with their swelled fin , their delimit feature are the spindly tentacle that dangle from their bodies for several meter . Thelargest known bigfin squidwas 6.4 meters ( 21 feet ) in total , with tentacles that were 6.1 measure ( 20 feet ) long .
Where Do Bigfin Squid Live?
Bigfin squids live throughout the world ’s ocean , from the Atlantic to the Pacific , but only at extremely cryptical depths .
They havebeen documentedat depths of 6,212 metre ( 20,381 substructure ) , making them the deepest - dwelling species of squid known to science .
In fact , it ’s the first known squid to inhabit the hadal zone , the deep region of the sea that start at 6,000 meters ( 19,685 foot ) below the water ’s surface . These zonescomprise45 percent of the sea ’s depth range but only 1 pct of the seafloor area , as they ’re only situate within pelagic trenches far below the rest of the seafloor .
When Were Bigfin Squid Discovered?
hearsay of their existence have be for centuries . One of the first time they weredocumented was in 1883when an person washed up in the Azores , a Portuguese archipelago in the mid - Atlantic . Its pitiable experimental condition made it difficult to identify , but it most likely belonged to the speciesM. talismani .
Magnapinnidaewasn’tformally describeduntil 1998 when scientist came across two dead juvenile specimens . One was discover float around the eastern Pacific Ocean , while the other was recovered from the stomach of a lancetfish .
Footage of Bigfin Squid
Thefirst video of a bigfin squidwas thought to have been trance in the Gulf of Mexico in January 2000 . Around this meter , more footage of a bigfin calamari was also memorialise in the waters around Hawai’i .
It turn out that deepsea Explorer had previously captured confrontation with bigfin squids before , the early being in 1988 , but they were incognizant of what they had caught on photographic camera .
In the past few tenner , just 20 or soobservations of living bigfin squidhave been made by scientists , go forth many aspect of their behaviour and life to be a pure mystery .
One interesting picture observationof a bigfin squid was fool in 2017 when researcher were filming from a remotely operated fomite at a depth of 3,056 meters ( over 10,000 feet ) in the Great Australian Bight . Remarkably , theMagnapinnasquid became caught in the thruster upheaval of the drone hoagy , make it to spin uncontrollably in a vortex current .
Perhapsthe most illustrious videoof a bigfin squid can be seen above and was filmed in November 2007 at an oil drilling site owned by Shell in the Perdido neighborhood of Alaminos Canyon in the Gulf of Mexico . The cartridge clip of the calamary went viral , no doubt thanks to the dim lighting and jerky motion-picture photography that render the TV a deeply creepy mood .
The Many Unknowns of Bigfin Squid
Bigfin squid have never been seen consuming food , so it ’s obscure how they hunt down prey and eat . With their skinny , apparently windy tentacle , it ’s hard to even speculate how they might do so .
Interestingly , scientists have only managed to get physical samples of adolescent bigfin calamari , although they have gain video observations of adults – or at least what scientists take for granted to be their grownup human body . As such , little is known about their life cycle .
scientist also do n’t know how fecund these animals are . Are they actually rarified ? Or is their apparent scarcity just a reflection of how lilliputian of the world ’s oceans we have explore ?