We provide a simple, quantitative explanation for the capacity of the Xenopus embryo to scale pattern with size. Three key features of the BMP patterning network underlie this capacity.

A novel method for monitoring caspase activity in living Xenopus oocytes and early embryos is described here. The approach, using microinjection of a near-infrared caspase substrate that emits ...

They are named for the African clawed frog Xenopus laevis, which supplies all their cells, and the suggestion, encapsulated in the prefix, that something strange, alien, is at work. A xenobot ...

Two genomes are better than one? African clawed frogs of the genus Xenopus (zen'-uh-pus, literally "strange foot") comprise more than 20 species native to sub-Saharan Africa. In the early 20th ...

The "Hogben test" got its start in 1930, when British biologist Lancelot Hogben began looking into what he called a godsend for hormone research: The African clawed frog, or Xenopus laevis.

Xenopus, meaning "strange foot," is a genus of more than 20 frog species native to sub-Saharan Africa. When biologists discovered in the early 20th century that these frogs were unusually ...

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 ...

I am interested in how these networks form. I am especially interested in the molecular pathways underlying this process. My lab studies these questions in the developing visual system of the Xenopus ...

Amphibian chytrid fungus seems to have spread around the world astride the South African clawed frog, Xenopus laevis, which was exported for use as a pregnancy test. Wait a second—how do you use ...

The Common Platanna (Xenopus laevis), is also known as the African Clawed Frog. PHOTO: Nick Evans THE Common Platanna (Xenopus laevis), also known as the African Clawed Frog, has got to be one of ...

In 1938, Dr. Edward R. Elkan wrote in the British Medical Journal: The discovery of what is now known as the xenopus pregnancy test is based on experiments conducted by Hogben (1930, 1931), who ...

“Atrazine has been used widely in South Africa for the past 45 years, and our studies showed that Xenopus are doing equally fine in agricultural and nonagricultural areas,” says zoologist ...