Urodacus elongatus

Adult females produce litters of around 25 in late summer/early autumn. The young clamber onto mums back and remain there until they undergo their first molt. Soon after the molt they leave mum and find their own homes. Scorpions are generally solitary animals and prefer to live alone.
The scorpion on the right is a subadult which has just undergone a molt. You can see the the shed skin alongside. The scorpions close off their burrow during molting, which allows high humidities to be maintained through ecdysis(molting) and keeps potential predators out. During and for a week or two after molting the scorpion is quite vulnerable with it's soft exoskeleton and hence isolation is vital. Once the new cuticle(exoskeleton) hardens the scorpion clears the blockage and returns to the scrape below the rock, where it resumes normal activity.