Researchers have been observing evidence of killer whales targetting great whites near South Africa since 2017.
The killer whales most likely removed the sharks’ livers because they are a very nutritious organ.
Ms Towner said: “It’s clear to see that wherever they are in the world they’ve learned hunting strategies that are so precise and refined… and taught to their young.”
The researchers think the orcas were trying to grab the sharks’ pectoral fins in a “ripping motion”.
Ms Towner added: “The liver… it’s oily, very slippery, it would naturally slide out so they could come along and share it.”