When you purchase through links on our site , we may earn an affiliate commission . Here ’s how it act upon .
Hundreds of knucklehead sharks pucker around an ancient vent in the Pacific Ocean , drawn by secret signals radiating from the seabed , a Modern cartridge clip break .
The footage , which features in the third installment of Netflix ’s new wildlife docudrama series " Our Living World , " shows a school of hammerhead sharks ( Sphyrnidae ) encircle Cocos Island — a volcanic island in the easterly tropical Pacific about 310 miles ( 500 kilometers ) southwestward of mainland Costa Rica .
Hammerhead sharks gather in waters off Cocos Island.
Cocos Island is a known haven for endangered hammerhead shark , but scientist still are n’t certain how and why so many sharks navigate across swathes of ocean to convene there every yr .
" We do n’t really know how these sharks are doing this , " Ben Roy , the series producer of Our Living World , tell Live Science . " We know that they ’ve go sensors in their chief and we recognize that these sensors pick up on the magnetized touch of these cool volcanic rocks . "
The island mold when lava erupt from an ancient underwater volcano and solidify , until it eventually rose 12,000 substructure ( 3,660 meters ) above the sea floor .
Hammerhead sharks gather in waters off Cocos Island.
For the sequence , film crowd followed a untried female hammerhead shark as she leave her coastal nursery and travel 300 miles ( 480 km ) across the Pacific Ocean to the volcanic oasis , where scientists think the sharks put together to relax , socialize and find a married person . The female person instinctively acknowledge the path to Cocos Island thanks to electromagnetic signals emanating from hardened volcanic rocks on the island ’s slopes .
Related : Watch great blank shark get mobbed by bunch of seals in ' unbelievable and surprising ' footage
In the clip , the vernal female get together one C of other blockhead sharks as they form a vortex around the island . At " the actual minute when all those hammerheads aggregated and start to drown in those cyclone , " Roy say his squad " get lucky with some cracking behavior . "
Film crews followed a young female hammerhead shark as she left her nursery to travel to Cocos Island.
This is n’t the first prison term sharks have been seen enigmatically congregating . scientist previously documented ahammerhead shark gatheringin the tropical waters of Gallic Polynesia , in the South Pacific Ocean , but that assembly attracted only females .
Our Living World
The dunderhead shark gathering is just one astonishing scene among many boast in the four - part nature serial , which premier Wednesday ( April 17 ) on Netflix . The show highlights the intricate links that support the Brobdingnagian web of life on Earth , from the invisible fungous networks that nourish forest ecosystems to transatlantic clouds of nutrient that blow from Africa to South America and rain down on the Amazon .
— ascertain a great white shark raven a seal off the coast of Cape Cod , shocking nearby whale watchers
— ' One of the holy grail of shark science ' : Watch 1st ever footage of baby nifty white shark moments after birth
Scientists aren’t sure how or why hammerhead sharks find their way to Cocos Island.
— catch 2 megamouth sharks get on picture for the 1st time ever
" The connectedness are what makes this series altogether different to anything I ’ve been involved with or seen in terms of wildlife nature testify on the goggle box , because what we ’ve adjudicate to do is tell a story that shows how case-by-case creature lives and creature behaviors are connected to a much expectant picture , " Roy said .
In tell these stories , " we were really look for the wow , " Roy said . " We are potentially the first generation to be able to to the full compass the connectivity of what ’s going on here and potentially the last generation to be able to put that knowledge to good role . "
The lunkhead shark assembly footage fulfills every expectation Roy had for the show , he say . " Talking about those ' wow ' revelations — for me that was one of them , " he said . " Sharks need volcano ? Who knew ! "
