Recent peer-reviewed research confirms orcas are not limited to seals, fish, and dolphins; they also prey on great whites, using intelligence and coordination to outmaneuver an animal once thought untouchable.<\/p>\n
The First Shocking Attack In Australia<\/p>\n
The turning point came in October 2023, when a 4.7-metre great white washed up near Portland, Victoria. The carcass told a disturbing story: the mid-section containing the liver \u2014 and other internal organs \u2014 was missing, removed with striking precision. Genetic swabs from the bite wounds detected orca DNA, and sightings days earlier included locally catalogued individuals Bent Tip and Ripple in the area. It\u2019s the first confirmed evidence of orca predation on a great white in Australian waters.\u00b9<\/p>\n
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Footage released in June that captured the first instance of an orca whale feasting on a Great White Shark. Credit: Discovery
\nSurgical Hunters Of The Sea<\/p>\n
Orcas have always been known for their intelligence, but their hunting strategies against sharks<\/a> take it to another level. Rather than consuming an entire carcass, they target the nutrient-rich liver \u2014 a calorie-dense organ laden with lipids. Marine biologists have documented orcas flipping sharks upside down to induce tonic immobility \u2014 a paralysed state \u2014 before extracting the organ with remarkable accuracy.\u00b2 It\u2019s a chilling reminder that orcas don\u2019t rely on brute force; they strategize.<\/p>\n Did you know? Consequences For Marine Ecosystems<\/p>\n The rise of orca attacks could trigger major changes for shark populations and the ecosystems they help regulate. In South Africa, great white sightings plummeted and sharks abandoned key hunting grounds after specialized orca predation became established.\u00b3 A similar \u201clandscape of fear\u201d dynamic has been documented in California, where great whites rapidly fled the Farallon Islands when orcas appeared, redistributing foraging pressure on seals.\u2074<\/p>\n If the same pattern unfolds in Australia, it may disrupt the balance of marine life. Fewer sharks could mean less control over seal and fish numbers, potentially reshaping entire food webs. Researchers caution that it\u2019s too early to know how frequently such predation occurs in Australian waters \u2014 but top-predator shifts can cascade in unpredictable ways.<\/p>\n A New Order In The Ocean<\/p>\n
A great white\u2019s liver is so energy-dense that a single organ can offer a substantial caloric payoff \u2014 one reason orcas selectively target it.<\/p>\n<\/p>\n
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