Also known as the Giant Vinegaroon, the Giant Whip Scorpion (Mastigoproctus giganteus) is a kind of whip scorpion found in the southern United States and Mexico. ”Whip” refers to its long, whip-like tail while ”Vinegaroon” refers to the vinegar smell of its spray (containing acetic acid) that discharges from its tail and acts as a form of defense for the scorpion when being attacked. Its long, thin tail is also used for navigation in combination with its two long front legs. In this way, the Giant Whip Scorpion feels for its prey and can then crush it with its specialized pincers or pedipalps.