Scorpions, arachnids distantly related to spiders, came into existence before all spiders and insects. They are nocturnal hunters that hide in dark cool spots during the day. Their venom, used to paralyze their prey, is carried in their tail. While the four inch long desert hairy scorpion is the largest and least toxic and the two inch bark scorpion is the smallest and most toxic, a sting by any scorpion should be taken seriously and medical treatment sought immediately. Though relatively scarce in this area, they are here. Any rock should be rolled over before fingers slip under to lift it. Female scorpions, like the vinegaroon, carry the young on their back until their first external skeleton is shed when they drop off and become independent.