Animal cells don't have a fixed shape like plant cells. They are irregularly shaped, which means their shape can change depending on their function and surrounding environment.

Here's why:

* Lack of cell wall: Unlike plant cells, animal cells don't have a rigid cell wall that maintains their shape.

* Cytoskeleton: Animal cells have a dynamic cytoskeleton made of proteins like microtubules and microfilaments. This internal framework helps them move, change shape, and carry out different tasks.

* External factors: The shape of an animal cell can be influenced by the surrounding cells, the amount of fluid around it, and the forces acting on it.

So, while there's no single "shape" for all animal cells, they are generally described as being irregularly shaped.