Was just reading about this ....
"Orcas have reportedly attacked and sunk three boats off the coast of Spain in apparent acts of revenge that experts worry other whales in their pod might copy."
"Marine biologist Alfredo Lopez Fernandez told
Live Science that the lead whale, a female orca scientists have called White Gladis, suffered a "critical moment of agony," likely a collision with a boat or entanglement with a fishing line, that turned her more aggressive."