I really never knew that. Mind you, I've never seen one in the flesh.

Yeah, the article says it's the males who use it through their back spurs during breeding season.

After all those years of David Attenborough programmes and I didn't know that. Nature is a constant surprise.

Beaver + Duck + Cobra = Platypus

I don't think the fluffy toy one I was bought as a gift had that on the label.