Platypus: The Gentleman With A Poisonous Spur

By Clive C. Broadribb Category: The Animal Kingdom 8th August 2026

Ladies, if you thought evolution had run out of cheeky jokes it has not; it decided to give a polite, furred monotreme a hidden switchblade in the form of a hind-leg spur. The male platypus, that baffling hatched amalgam of bill, tail and webbed slippers, sports a hollow spur connected to a crural gland that oozes a cocktail of proteins and peptides. It is seasonally active, like a committee that only bothers to work in spring, and it is designed to make rivals reconsider their life choices.

Now, before you enquire whether Britain should treat this as a sporting hazard and issue regulations, the useful facts: the venom is not usually fatal to humans, but it produces excruciating pain, intense swelling, and incapacitation that can last for days. Witnesses describe pain so decorous it demands a sick note and a dramatic lack of dignity. The likely ecological purpose? Male platypuses employ it in male to male combat during the breeding season. Imagine two gentlemen at a county club politely disagreeing about who gets the terraced lounge, and one of them secretes a tiny chemical memorandum under his cuff that settles the argument with alarming efficiency.

It is worth remarking upon the sheer bureaucratic elegance of the thing. Monotremes are egg-laying mammals, and yet the male platypus is one of the very few mammals to have evolved venom. Evolution, clearly, enjoys irony. Scientists are fascinated because the venom is a complex molecular jumble and might teach us things about pain pathways. I, naturally, am more interested in the social etiquette: when hedgehogs, badgers, and ducks refuse to RSVP, the platypus turns up with a legal brief and a pencil dagger and insists upon order.

So next time you admire that adorable beaverish tail or the comical duck-bill at the zoo, remember the little spur tucked away on the hind leg. It is evolution's equivalent of a stick-on name badge that reads: Do Not Cross Me. And if you still want to cuddle it, may I suggest an appointment with reality and a generous application of common sense.