Whipscorpion

The Whipscorpion was an arachniform animal native to the desert world of Zeteh'ca. It was notable for its ability to change the color of its carapace using Chromatophores, its toxic "whip" tail, which was covered in stinging nematocysts, and its extreme aggressiveness.

The scorpions whip
The nematocysts of the whipscorpion coat the animals twin tails. Usually, first contact with these stinging organelles produces extreme, searing pain. Depending on the size of the victim, and the amount of exposure, in a matter of minutes the pain is replaced by numbness, paralysis, and possibly death if the toxins reach the brain stem.