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Orcas’ specialized Shark Hunting Tactics Revealed
Table of Contents
Published: 2025/11/03 06:08:10
Orcas are called “killer whales” for a reason. These apex predators are adept pack hunters using coordinated attacks and specialized techniques to take down their prey.
New Research on Great White Shark Attacks
Scientists recently captured stunning drone footage of a pod of orcas in the Gulf of California killing juvenile great white sharks by flipping them upside down and feasting on their livers. Researchers described the attacks in a new study published Monday in the journal Frontiers in Marine Science.
The video is the work of the study’s led author, marine biologist and wildlife underwater cinematographer Erick Higuera, and Marco Villegas. Higuera has been filming and studying orcas for more than a decade, but the first time he observed this particular shark-hunting behavior was in August 2020. At first, he couldn’t tell based on the drone footage what species of shark the pod was hunting.
Initial Observations and Identification
“I thought, ‘Well, it might be a sand tiger shark,'” Higuera said in a statement. “But as the drone got closer, we realized it was a great white shark.” The orcas targeted juvenile great whites,typically measuring between 6 and 13 feet long. This suggests a strategic focus on more vulnerable individuals.
the Hunting Technique: Flipping and Liver Extraction
The orcas employ a remarkably precise and brutal technique. They typically corner the shark and then flip it upside down,inducing tonic immobility – a temporary state of paralysis in sharks. Once immobilized, the orcas proceed to remove and consume the shark’s liver, a nutrient-rich organ.
“the orcas seem to know exactly what they’re doing,” explains Higuera.”They’re not just randomly attacking. They’re specifically targeting the liver, which is a very nutritious organ.”
Why the liver?
The preference for the liver is likely due to its high concentration of squalene, an oily substance found in shark livers.Squalene is rich in energy and essential fatty acids, providing a important nutritional boost for the orcas. This behavior isn’t new; similar attacks on othre shark species have been documented.
A Learned Behavior?
This hunting strategy appears to be a learned behavior, passed down through generations within the orca pod. The researchers believe that a single female, nicknamed “Scarlet,” initiated the technique and has since taught it to other members of the group. This transmission of knowledge highlights the remarkable intelligence and social learning capabilities of orcas.
Implications for Great White Shark Populations
The targeted hunting of great white sharks by orcas raises concerns about the potential impact on shark populations in the Gulf of California. Juvenile sharks are crucial for the future health of the species, and their removal could have cascading effects on the marine ecosystem.
Key Takeaways
- Orcas are highly smart and adaptable predators.
- They have developed a specialized technique for hunting great white sharks, involving flipping them and extracting their livers.
- This behavior is likely a learned behavior, passed down through generations.
- The hunting of juvenile great whites could have significant implications for shark populations.