Nyororos are a species of space plant from Planet Keron. They are attracted to areas of high humidity and prey on Keronians, which they swallow using the opening on their tail end. They then squeeze the moisture out of them, and spit the dehydrated Keronian out of their mouth. This does not kill the Keronian, but leaves them unable to move for several days until hydrated again. Once they have sucked a Keronian dry, the Nyororo glows a pale blue and then departs. They are highly sensitive to hot and spicy food and would die if they consumed it. They usually appear in a pillar of lightning.