Both wasps and hornets are stinging insects that can sting multiple times, as they don't die after stinging. Only female wasps and hornets have stingers as the stingers are actually the female reproductive organ for depositing their eggs. Hornet stings are generally more painful due to the high acetylcholine content. Hornets use neurotoxins to paralyze or kill their prey, which can be fatal in rare cases of intense allergic reactions. Yellow jacket wasps can also be dangerous due to their stings.