However, there are a few exceptions:
* Bears: Particularly large bears, like grizzly bears or polar bears, are known to prey on wolves, especially cubs or weaker individuals.
* Other wolves: Wolves are known to compete for territory and resources, and sometimes fight and kill each other, especially in pack conflicts.
* Humans: Humans are a threat to wolves through hunting, habitat destruction, and other human-induced factors.
It's important to note that wolves are typically much larger and stronger than most other animals, making them difficult prey for most predators. Their social structure and hunting skills also contribute to their ability to defend themselves.