Here's why:
* All living things are made of cells. This includes animals, fish, plants, bacteria, fungi, and even you!
* There are many different types of cells. Within each organism, there are different types of cells specialized for specific functions (e.g., muscle cells, nerve cells, skin cells).
* Fish are animals. They belong to the animal kingdom and have a wide variety of cells just like other animals.
In summary: Fish cells are animal cells. They share the same basic structure and function as other animal cells, but they may have some specialized adaptations depending on the specific fish species.