This post is all about the Bark Scorpion, which we saw while doing a nature hike in the dark at Rafiki Lodge. Like most scorpions, it glows in the dark, while under black light. In addition to Costa Rica, the Bark Scorpion can also be found in Missouri. Its stings are painful, but rarely fatal. Scorpions are born live and usually spend their first few weeks on their mother’s back. They grow to a length of a couple of inches and are active at night. Randol, our guide had no fear of them and even picked one up and handled it.