In 2015, Evans—who has studied the African clawed frog for over two decades—led a team which discovered six new species and added another back to the list of known species, providing the ...

African clawed frogs used to be the best human pregnancy tests in the world. Doctors would inject a woman's urine into the back of a female frog; if positive, the frog would lay eggs. Frog or ...

Prior to conventional pregnancy tests being widely available, would-be parents often relied on the help of the African clawed frog to confirm the good news. In the first half of the 20th Century ...