An Arizona insect holds the Guinness World Record for most toxic insect venom. You might be surprised, but this little bug packs a punch.

The Arizona bark scorpion delivers an intensely painful sting, often described as sharp and electric, causing numbness, tingling and muscle spasms. The venom, while rarely fatal, can cause severe ...

Antivenom is the primary treatment for children stung by venomous scorpions. There are at least 17 species in Nevada, with the Arizona Bark Scorpion being the most dangerous to humans.