It was reported in the news (on the order of two years ago) that killer whales off the coast of Mexifornia were teaching their you the “trick” for hunting great white sharks.
They long have used teamwork to drown larger whales, a pair of killer whales each holding the prey by one of its pectoral fins. They reportedly do the same to great whites, only not to drown it, to make it “go to sleep.” And once they’re asleep, they’re defenseless.
How to put a shark to sleep:
https://www.youtube.com/watch?v=kASPuccO1yw
I demand Orca day and Whale Week