Template:Featured Article

The Screamapillar is an endangered species, one of which took up residence in a koi pond in the Simpson family's backyard. It is large and red and is similar to a caterpillar, and is notorious for its loud piercing scream. The Environmental Protection Agency is one of the main organizations charged with monitoring the species' welfare.

The Screamapillar is easily identified by its constant screaming—it even screams in its sleep. The Screamapillar is the favorite food of everything, is sexually attracted to fire, and needs constant reassurance or it will die. One way to reassure the Screamapillar is to burp it like a baby. Marge discovered that when the Screamapillar is burped, it spews copious amounts of vomit.

The Simpsons were forced to take care of the Screamapillar by the Environmental Protection Agency after it took up residence in their koi pond.