Orca Attacks on Blue Whales

There haven't been any documented human attacks by wild orcas. But for attacks on blue whales, it's a different story. There used to be a lot more blue whales but they were decimated by commercial whaling. As whales and large whales recover, we might see that these attacks become more common as that becomes a more frequent and available prey again. So since there are more blue whales now, maybe killer whales almost relearned this behaviour,. It could become part of their repertoire now, to hunt down and kill blue whalesye exactly.