In the 1930s, British scientist Lancelot Hogben discovered that the African clawed frog could be used to detect pregnancy when injected with a woman's urine. The hormone-sensitive amphibian would ...

The technique, which uses genes taken from the honeybee and the African clawed frog, blocks normal growth of the malaria ...

A female African clawed frog, Xenopus laevis, was housed at the Biological Resources Facility of North Carolina State University in a tank with two other females. The frog was ∼1.5 years old and ...