5 ms·
More interesting was that before the current chemical strip-based test, apparently the best way to test for pregnancy was to inject the urine into the leg of an
by ufmace 6y ago
More interesting was that before the current chemical strip-based test, apparently the best way to test for pregnancy was to inject the urine into the leg of an African clawed frog, then see if it laid eggs in the next 24 hours.
https://twitter.com/Foone/status/1301844281540239360 https://twitter.com/Foone/status/1301844281540239360
- Zeebrommer 6y agoOne wonders how this method was discovered...
- acdha 6y agoIt’s a good read about what scientists do when they have an idea of what they need but not a direct way to measure it, and it was a lot better than the mouse/rabbit tests which involved killing the animal: https://www.theatlantic.com/science/archive/2017/05/how-a-frog-became-the-first-mainstream-pregnancy-test/525285/ https://www.theatlantic.com/science/archive/2017/05/how-a-fr...