Sea urchins have a round body covered in spines and tube feet. They come in many colors and range in size from a pea to a grapefruit. Sea urchins live in rocks, coral reefs, and sea grass near shorelines. They eat algae, mussels, and plants using poison in their spines to kill their food. Sea urchins protect themselves from predators like lobsters and sea otters by hiding, camouflaging, and using their hard spines and shell. There are over 800 kinds of sea urchins.

1. MyOceanReport About Sea Urchins ByALEXM.BRAY

2. What it looks like

3. What it looks like A sea urchin has a weird looking mouth at the bottom of it’s body. It has five teeth. It has lots of spines. When it’s a baby its body can be as small as a pea and when it’s an adult its body can be the size of a grapefruit. It can have hundreds of feet and spines. It has tube feet. Its feet have suction cups for traction so it can walk. Sea urchins come in many colors like red, orange, white, black, or purple.

5. habitat

6. habitat Sea urchins sometimes live in rocks and coral reefs. Spiny urchins mostly live in sea grass. They like to live in warm water near the shore. They burrow into the place they want to live in and that becomes their home.

8. Eats and how it get’s food

9. Eats and how it get’s food Sea urchins mostly eat algae and mussels. Sea urchins also eat other plants and rarely eat some small animals. To get their food they sometimes poison it because they have poison in their spines. They move slowly to look for food. If they haven’t eaten in a long time and can’t find any food they nibble on rocks. They help sand dollars by poisoning their enemies so they don’t get eaten.

11. Its enemies and how it protects itself

12. Its enemies and how it protects itself Sea urchins poison their enemies. They hide in rocks. They can camouflage so their colors blend in. Animals like lobsters and sea otters, some humans and some other animals eat sea urchins. They burrow sometimes to hide. To protect themselves, they use their hard shell.

14. Other important information

15. Other important information Sea urchins have shells under their bodies. They have suckers on each foot and the suckers help them breathe. They use their spines to dig. There are more then 800 kinds of sea urchins. They can lay thousands of eggs at a time. They can live for more then one hundred years. Sand dollars and sea biscuits are in the sea urchin family.