Zygons

Zygons are a shapeshifting race that will disguise themselves as Nitwits to survive. If you attack or uncover a zygon they will become hostile. When they are hit they will call any other zygons nearby to attack you. You can detect any zygons nearby with a Zygon Detector. When a zygon is killed it will drop a Zygon Tounge, ew.