Squirmers

The question of what should be considered alive is a hard one and squirmers made the definition even harder to make. These little wriggling parasites look like 20 cm long (8 inches), pale worms. They start there life smaller then 2 cm (0,7 inces), growing to full size in 4 months. They have fully developt gills, and need to stay submurged for most of there life.