Scorpion is any arachnid of the order Scorpionida, of warm dry regions, having a segmented body with a long tail terminating in a venomous sting. It can also be defined asan arachnid with lobster-like pincers and a poisonous sting at the end of its tail.
Scorpions have two part chemical arsenal that they uuse to stun their prey and deter enemies. The first weapon, which researchers call PREVENOM is a clear liquid that contains roughly 80mm Potassium salt and other substances including a peptide that blocks potassium channels in the victim, making the jolt of potassium even more toxic. This is followed, if needed by a second and better studied milky white venom that is rich in Neurotoxin peptides.
Although entomologists first observed prevenom in scorpions more than 20 years ago, this current work from University of California, Davis, U.S.A, is the first to show that its potency comes not from peptides, but from potassium salts.
A scorpion's stinger
A sting with the potassium-rich prevenom from the scorpion (Parabuthus transvaalicus),is even more painful that regular venom, though it would not =>> http://themedicaid..com/2016/03/how-is-scorpion-able-to-stun-it-preys.html