Doctors Used to Use Live African Frogs As Pregnancy Tests | Smart News| Smithsonian Magazine
Primodos was a revolutionary oral pregnancy test. But was it safe? | Science | The Guardian
Some peculiarities of the male frog test for early pregnancy. | Semantic Scholar
Clawed frogs (Xenopus): living pregnancy tests and cannibals
Pregnancy Testing May Have Led to Spread of Deadly Frog Fungus
Escapee pregnancy test frogs colonised Wales for 50 years - BBC News
PDF) The Xenopus Pregnancy Test: A Performative Experiment
Pregnancy Tests Used to Require Injecting Frogs with Urine - YouTube
How This Adorable Frog Became One of the Earliest Pregnancy Tests Around - Center for PostNatural History
African clawed frog | Smithsonian's National Zoo
Pregnancy Tests Used to Be African Clawed Frogs
Pregnancy Tests Used to Be African Clawed Frogs
California frogs once used for pregnancy tests carry deadly fungus - Los Angeles Times
Pregnancy test helped to bring frog-killing fungus to the US | Nature
African Clawed Frog Used to Tell Women Whether They Were Pregnant
Cane toads used for 1950s pregnancy testing by Australian scientists Louis Tuttle and Bill Horsfall - ABC News
Pregnancy Tests Used to Be African Clawed Frogs
Pregnancy Tests Used to Be African Clawed Frogs
Frogs Were Used In Pregnancy Tests | EnglishClub
A brief history of pregnancy tests – from toads and rabbits to rosewater
Frog test - Wikipedia
Frog test - Wikipedia
Clawed frog | African, Aquatic & Nocturnal | Britannica
Why Would You Inject A Frog With Human Pee? To See If You're Pregnant | IFLScience
Ancient fungus has world's frogs in its deadly grip
