Scientific American offers excellent play-by-play to help understand what you're looking at:
* Black-eyed squid snares owlfish with its two tentacles, which are tipped with hooks and suckers, and reels it in.
* Black-eyed squid gnaws away at the owlfish’s spinal cord using its very sharp beak.
* Owlfish is wearing a suit of large, shaggy scales, which it proceeds to shed in an effort to loosen the black-eyed squid’s eight-armed grip.
* Owlfish’s scale trick doesn’t work, squid burrows deeper into its back muscles, rotating it around it a cob of corn
* Owlfish dies with a gaping, red, meaty hole in its back and the drinks are on black-eyed squid because he’s feeling pretty great right now.
Yeah, so brb NEVER GOING SWIMMING AGAIN.
(via @DavidGrann, naturally.)