What are animals with irregular shapes called?

There isn't a single, universally accepted term for animals with irregular shapes. Here's why and some possibilities:

The Problem:

* "Irregular" is subjective: What one person considers irregular, another might not. A starfish is very symmetrical to some, while another might see it as irregular.

* Animal shapes are diverse: There's a vast range of shapes in the animal kingdom, from the streamlined bodies of fish to the spiky shells of sea urchins.

Possible Terms:

Instead of a single term, you could use descriptive terms based on the specific shape or feature:

* Amorphous: This describes animals with a shapeless or undefined form.

* Asymmetrical: Used for animals that lack bilateral symmetry (mirror image halves).

* Spiky: For animals with pointed projections or spines.

* Lobed: For animals with rounded, irregular protrusions.

* Irregularly Shaped: A general term that can be used, but it's less specific.

Examples:

* Amorphous: Some amoebas and jellyfish

* Asymmetrical: Flatfish, crabs, some sea anemones

* Spiky: Hedgehogs, porcupines, sea urchins

* Lobed: Some starfish, sea slugs

Ultimately, the best way to describe an animal's shape is to use specific and descriptive language that accurately reflects its form.