How a pregnancy test caused a catastrophe for frogs | BBC Earth
Did pregnancy tests spawn plague of frogs?
Pregnancy test helped to bring frog-killing fungus to the US | Nature
California frogs once used for pregnancy tests carry deadly fungus - Los Angeles Times
Pregnancy Tests Used to Require Injecting Frogs with Urine - YouTube
Frog test - Wikipedia
Pregnancy Tests Used to Be African Clawed Frogs
Pregnancy Tests Used to Be African Clawed Frogs
Some peculiarities of the male frog test for early pregnancy. | Semantic Scholar
How This Adorable Frog Became One of the Earliest Pregnancy Tests Around - Center for PostNatural History
The early pregnancy test that involved... frogs! - BBC Ideas
How a Frog Became the First Mainstream Pregnancy Test - The Atlantic
Object 12: Frog
Doctors Used to Use Live African Frogs As Pregnancy Tests | Smart News| Smithsonian Magazine
CSS Times - The first female pregnancy test was in the... | Facebook
Pregnancy tests: how frogs improved women's healthcare | Natural History Museum - YouTube
African Clawed Frog Used to Tell Women Whether They Were Pregnant
Best Pregnancy Test used to be African Clawed Frogs | Business Insider | Marine Biological Laboratory
The Xenopus Pregnancy Test: A Performative Experiment" | Semantic Scholar
Frog tool for pregnancy testing
Frog test - Wikipedia
Frog Once Used in Pregnancy Tests Spread Deadly Fungus - The New York Times
