Researchers have used mRNA sequences, rather than DNA, to more efficiently create a reference database that can be used for proteomic analysis of Xenopus frogs. The researchers used their reference ...

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 ...

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 ...

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 ...

The lifespan of Xenopus laevis is presented in unprecedented detail using high-quality X-ray microtomography images and 3D reconstructions to reveal embryonic development and metamorphosis processes ...

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 ...

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" ...

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 ...