Average explorers and most researchers rarely ever see frilled sharks because they typically live way below the surface -- anywhere from 1,600ft and 3,300ft down. This particular frilled shark was picked up at depth of 2,300ft, where only a handful of deep-sea creatures can survive. Due to the great depth, their diet is pretty limited and consists primarily of cephalopods like squid and octopi, which they're particularly suited to catch with their whopping 300 teeth -- coiled in rows of 25 each -- via quick lunge attacks, according to professor Margarida Castro of the University of Algarve per a report from The Portugal News.
They're known to swim in the waters off Scotland, Spain, Japan, Australia, and New Zealand, but it's incredibly unlikely you'd ever come across one since they live so deep down. Then again, you never know what weird sea creatures might just start making their way to beaches they don't belong near.