Hybridization of eggs and sperm from closely related species can give rise to genetic diversity, or can lead to embryo inviability owing to incompatibility. Although central to evolution, the cellular ...

For decades, the African clawed frog (Xenopus laevis) played a surprising and essential role in human medicine. Native to the ...

The genome sequence of the most common laboratory frog reveals that it originated when different frog species hybridized and the genome doubled, paralleling events that led to the origin of ...

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 "Hogben" ...

Behavioral Ecology and Sociobiology, Vol. 62, No. 11 (Sep., 2008), pp. 1821-1829 (9 pages) We examined the behavioral and developmental responses of Xenopus laevis larvae to their mirror images in ...

For decades, the African clawed frog (Xenopus laevis) played a surprising and essential role in human medicine. Native to the ...

Scientists have used Xenopus laevis tadpoles to tease out the genetic and biological mechanisms that enhance disease tolerance, and have identified drugs that can keep the tadpoles alive even in the ...

The African clawed frog, Xenopus laevis, is a palm-sized, greenish-gray animal that hails from the ponds and rivers of sub-Saharan Africa, where it lived for millions of years without anyone injecting ...

Because of its large eggs, Xenopus laevis -- the African clawed frog -- has become a popular model for studying embryo development and cell biology. It's smaller cousin, X. tropicalis, is now gaining ...

A fungus that grows on the backs of frogs may be responsible for the extinction of dozens of species, say the authors of a study published in Thursday’s issue of Nature. Amphibian chytrid fungus seems ...

Pregnancy tests did not always come in an easy-to-use, sterile kit that provided almost immediate results. Less than a century ago, women had to rely upon frogs instead. In 1938, Dr. Edward R. Elkan ...