What animal is an empress?

There is no animal that is specifically called an "empress." The term "empress" is usually used for the female ruler of an empire.

However, some animals are associated with royalty or have names that sound similar to "empress":

* Emperor Penguin: This penguin species is named for its size and dominance.

* Empress Butterfly: This butterfly is known for its beautiful, intricate wing patterns.

So, while no animal is literally an "empress," these examples show how the term can be used metaphorically or in names that sound similar.