Crown-of-thorns+starfish

They live mainly at the bottom of the ocean where they're lots of coral.
 * Scientific Name:** Acanthaster Planci
 * Habitat:**

They live in the tropics in the Red Sea through the Indian and Pacific ocean along the coat of Panama.
 * Range:**

These are some of the biggest starfish in the world, they can go from a grain of sand to the size of a dinner plate, and the biggest ones can be as big as a tire! They have lots of thorns all over their body and have 12-19 arms.
 * Physical Characteristics:**

The starfish eat coral poylps and how they do that is very interesting they climb onto them and squirt digestive enzyems to eat the liquefied tissue.
 * Diet:**

Their defence from humans is to sting them or prick when that happens a horrible poison is let out which hurts for hours and could cause you to vomit and to be nausea.
 * Behavior and Adaptations:**

They do it by spawing.
 * Reproduction:**

nothing
 * Relationship to people:**

Sometimes there are too many and sometimes not very many**.**
 * Status:**

This starfish is a big threat to the coral reefs like The Great Barrier.
 * History:**

1. __wikipedia.org__."Crown-of-thorn starfish main page" 2006.April 29,2008. http://en.wikipedia.org/wiki/Crown-of-thorns_starfish 2. __divegallery.com.__ "Crown-of-thorns starfish,Acanthaster planci." '98. April 29, 2008 http://www.divegallery.com/crownofthorns.htm No Book
 * Citations:**