The Crown-of-Thorns Starfish

Welcome to my website on Acanthaster planci, or more commonly known as, the Crown-of-Thorns starfish! It is important to understand this oceanic organism because it plays a vital role in the destruction of coral reefs throughout the world. On this website you will learn about various aspects of Acanthaster planci, such as its classification, habitat, adaptation, what makes them so dangerous (venom), their diet, how they reproduce, and what kinds of interactions they have with other organisms.

Image courtesy of Nick Hope, Thank you! Click  on the image to view more photos of various  aquatic organisms taken by Nick!

To find out more about Acanthaster planci please refer to the links in the blue boxes to the left. You may also follow along with a guided tour of the website via a link provided at the bottom of each page.

The first stop is Classification but before you move on please consider the following:

My name is Bryan Robinson and I am a sophomore attending the University of Wisconsin- Lacrosse. If you have any questions feel free to Contact Me at

This site was created for a project during the spring semester of 2013, theme of venomous and poisonous organisms, in BIO 203 and is part of a growing movement on Multiple Organisms where you can learn about a variety of different species made by fellow UW-La Crosse students. I hope you enjoy my website!