The Sea Urchin has very unique and interesting characteristics. Sea Urchins can be black,brown,green, white and many more colors. All over the Sea Urchin there are spikes that keep predators away by scaring them with spikes that can be as long as two inches. Also the Sea Urchin measures from two to 6 inches long. …show more content…
You can find the Sea Urchin in the warmest seas to the coldest oceans off the coast of Antarctica. Because Sea Urchins are edible you may be able to find a sea urchin on the menu in a sushi restaurant. Sea urchins mostly eat kelp that they find nearby, but occasionally they will eat algae, sponges, or muscles. The Sea Urchin isn’t extinct because of its reproduction process.
The way Sea Urchins reproduce is very complex and Sea Urchins can have a very long lifespan. The female's role in reproduction is to mate with a male urchin to make several million eggs. Once the eggs are completely fertilized the female Sea Urchin releases the eggs into the sea. Once they are released they float in the ocean and wait to be met with a free-floating sperm that is released by males. ONce the Sea Urchin is fully developed they can like up to 200 years, but the average lifespan is 10-12