Bad Joke - and then some Facts
It doesn't take too long
Steve Irwin can't have been being Sunsmart that morning...Told you it was bad.
If he had been wearing sunscreen, he would've been protected from harmful rays!
Anyway (via Pharyngula) Rangel MD has some cold hard facts about stingray stings to tell you about nucleotidases and other toxins and their mode of action.