* Orcas (Killer Whales): These highly intelligent and social predators are known to hunt and kill adult whales, particularly gray whales and minke whales. They typically focus on calves and sick or injured individuals, but larger pods can also tackle adults.
* Sharks: While most sharks wouldn't target a healthy adult whale, some larger species, like Great Whites, have been known to attack whale calves or scavenge on dead whales.
* Other Whales: Orcas aren't the only whales that hunt other whales. Some species of toothed whales, like pilot whales, are known to prey on smaller whale species.
Important note: While these animals might occasionally hunt whales, it's not their primary food source. Most of their diet consists of smaller fish, squid, and other marine life.