Why is it said in English that a positive pregnancy test result is Rabbit dead? Detailed answer

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Why is it said in English that a positive pregnancy test result is Rabbit dead? Detailed answer

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Why is it said in English that a positive pregnancy test result is Rabbit dead?

A pregnancy test based on the presence of a hormone called human chorionic gonadotropin in the urine was invented in 1927. However, at that time there were no methods for studying urine itself, so it was administered to female animals - mice, frogs, and especially often rabbits, which is why such a test was called "rabbit test" ("rabbit test") in English. A few days later, the female was killed and the change in her ovaries determined whether the woman was pregnant or not. For a long time it was a popular misconception that the rabbit only died if the result was positive - hence the common English euphemism for the state of pregnancy "the rabbit died".

Authors: Jimmy Wales, Larry Sanger

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