platanna
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description
- In clawed frog
…the African clawed frog, or platanna (X. laevis) of southern Africa, a smooth-skinned frog about 13 cm (5 inches) long. It is valuable for mosquito control, because it eats the eggs and young of those insects. Native to sub-Saharan Africa, X. laevis was introduced to the United States and Britain.…
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spread of amphibian chytridiomycosis
- In amphibian chytridiomycosis
…in populations of platanna (Xenopus laevis), an African clawed-frog species widely used in biological research. Evidence remained inconclusive until 2018, when a genomic study indicated that Bd had originated in a particularly diverse hot spot in the Korean peninsula, which contained several strains of the disease. Bd likely emerged…
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use in pregnancy tests
- In pregnancy: Symptoms and signs; biological tests
…of the female South African claw-toed tree toad, Xenopus laevis, is based on the discovery that this animal will ovulate and extrude visible eggs within a few hours after it has received an injection of a few millilitres of urine from a pregnant woman. The male common frog, Rana pipiens,…
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