And this might actually explain what’s going on. After learning about how orcas are eating great white sharks, read about groups of killer whales attacking Alaskan fishing boats. It was, at that time, the first documented sighting of killer whales eating white sharks. But the rising frequency of the attacks is a new development. Once in range, great whites strike with rows of razor-sharp teeth that are continuously replaced throughout their life. It’s “apparently” for now, since no one has actually seen the orcas extracting the shark livers. Sharks’ livers have very high concentrations of oil and fats. “It turns out these risk effects are very strong even for large predators like white sharks — strong enough to redirect their hunting activity to less preferred but safer areas.”. According to the fishermen who witnessed the incident 1997, the orcas mushed the shark to death from the tail and then proceeded to eat its liver. The bodies ranged in size from nine feet to 16 feet, but each had large sets of puncture marks near the pectoral fins. Senior research scientist, Salvador Jorgensen at the Monterey Bay Aquarium, 93%). The situation they’d encountered could very well be a localized fluke — an anomaly that doesn’t represent the relationship between sharks and orcas on a bigger scale. The spatial and temporal overlap of great white sharks, orcas, and seals in the northeastern Pacific and at the Southeast Farallon Islands. The murderer of these sharks knew exactly where to bite to get what they wanted: each of the sharks was missing their liver. In October 1997, tourists in a whale-watching boat off the Farallon Islands, near San Francisco, witnessed two killer whales attack a great white shark and consume its liver. This results in an energy density that is higher than whale blubber. 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