What are facts about sea urchins?

Answer 1

1. they have 5 teeth
2. they grow up to 4 inches
3. they can live forever, unless they gat a disease or get attacted by a predator
4. They come in a many different colors.

I hope this helps you!

Answer 2

Sea urchins are marine animals found in oceans worldwide. They have a hard, spiny exoskeleton and use tube feet to move and feed. They come in various sizes and colors and play important roles in marine ecosystems.