Verneilan Parasite
this microscopic parasite is virtually undetectable when it it immature. However, once it finds its way inside the body of a host organism, the parasite lodges itself in the host's throat and begins to drink its blood. The parasite grows quickly as it gorges, filling the host's throat and causing the host to choke to death. The parasite then explodes, filling the host's body with toxic fluids from its gut.