Huge sixgill sharks spotted by submarine, eating a whale carcass. They then decide to smash into the submarine https://t.co/STxH9VGeI5 https://video.twimg.com/ext_tw_video/1843909366300176384/pu/vid/avc1/788x480/3PZyMZ-TYg7h2VHt.mp4?tag=12