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

However, the term "stinging" is a bit of a misnomer. “Stinging caterpillars actually aren’t stinging you and injecting venom, like a wasp would," says Eric Benson, PhD, professor emeritus and ...

It's that time of the year again: stinging caterpillar season. Furry buck moth caterpillars, armed with hollow spines attached to their venom sac, are slowly emerging throughout the state.