* Cats and Dogs: This is a classic rivalry! While some cats and dogs can be best friends, they often have very different personalities and communication styles, which can lead to conflict.
* Wolves and Coyotes: These are both wild canids that compete for the same resources, such as food and territory. They often view each other as rivals, and can even engage in aggressive interactions.
There are many other examples of animals that don't get along, depending on the specific species, their environment, and individual personalities.