A Ceti Eel has its body protected by a thick exoskeleton. They incubate their larvae between the plates of their jointed carapace. As adults, they are free-living burrowing creatures that spend most of the time hidden under the desert's sands. The larvae, however, are parasitoids. Once the larva leaves the protection of its parent's carapace, it will crawl into the ear of a larger being and burrow into the brain, causing the host severe pain, which leads to insanity and eventually death. As a side effect, it also makes the host extremely susceptible to suggestion.