Mondo Knows Facts

Male platypuses carry venom in a hind spur

The poison causes intense pain in people but is mostly used between rivals Production rises in the breeding season, when males compete for territory. The venom is a mixture of different proteins and its job appears to be to disable rather than kill. Females lose the spurs when young. It sits in Mondo's animals collection, one of 200 facts that each trace back to the reference below.

Male platypuses carry venom in a hind spur: Duck-billed platypus ( Ornithorhynchus anatinus ), TAS,
Charles J. Sharp ยท CC BY-SA 4.0 ยท licence ยท source

Where this comes from

Australian Museum

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Tags: platypus, venom, competition

Male platypuses carry venom in a hind spur: the short answers

Where does this come from, and can I check it?
The poison causes intense pain in people but is mostly used between rivals. The figure is taken from Australian Museum, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a animals fact?
Yes. It sits on the Animals shelf, one of 2,600 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?
The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.