Orca 4K 1977

To buy back his ship, fisherman Nolan needs a big catch. This prey could be a killer whale. But this animal has an unusually good memory and can remember the offender even after many years. “Did you know that killer whales are monogamous?” - warned Captain Nolan.
No, he would strand a female whale on the heels of his hunting schooner and watch her miscarry and, thrown off the side of the boat, kill herself by throwing herself under the blade. In the morning, her male will tow the corpse to the fishing village and challenge the captain to a deadly fight.