Fruit Worms

Fruit Worms are a type of parasitic annelid.

Description
Reaching a total length of 5 feet, Fruit Worms originally feasted upon fruit. A strain of Fruit Worms were in fruit when various mammals like humans, began eating them. Over time, fruit worms began to become parasites (this happening over thousands of years of course). Fruit Worms are born in fruit, then, a host eats the fruit, allowing the fruit worm to grow. The fruit worm then eats the host from the inside out, and finds another fruit to lay it's cacoons in.