Thanks to remotely operated vehicle Deep Discoverer (D2) and the telepresence capabilities of NOAA Ship Okeanos Explorer, everyone watching Dive 07 of the Windows to the Deep 2019 expedition saw such a scene live from the deep ocean. And fortunately for those of us who weren’t tuning in, we can nevertheless watch the scene play over and over again through video and still images.The scene played out as D2 was running a straight-line transit up a small topographic rise originally thought to be a shipwreck at about 450 meters (1,476 feet) of depth. As D2 flew over manganese-encrusted rocks, corals, sponges, as well as a diversity of other invertebrates and small shelter-seeking fishes, a few small sharks appeared. Then, a group of sharks in what looked to be a feeding frenzy appeared in the dim reaches of D2’s lights. Upon closer approach, the lights revealed a dead swordfish, approximately 2.5 meters (8 feet) in length, lying on the seafloor with at least 11 sharks circling and feeding “vigorously” on the swordfish's skin and muscle tissue. How do sharks and other species detect large food falls? It could be chemical trails, the vibrations of prey struggling, or the sound of one or more predators who initially found the prey and started feeding. This rare and startling event leaves us with more questions than answers, but such is the nature of scientific exploration.