Six new African clawed-frog species discovered – Research News
https://www.floridamuseum.ufl.edu/science/researchers-discover-six-new-african-clawed-frog-species-discovered/Before modern-day pregnancy tests, doctors in the early 20th century resorted to unusual methods. One was to expose a live African clawed frog to a woman’s urine, then wait hours to see if it laid eggs. If it did, the test was positive. The frogs were used in pregnancy tests until the 1970s when
understand how much diversity there is and where it occurs,” said Evans, an associate professor