Q: What is Xenopus?

A: Xenopus is a genus of aquatic frogs native to sub-Saharan Africa, and it is commonly known as the clawed frog.

Q: How many species of Xenopus are known?

A: Twenty species of Xenopus are known.

Q: Which are the two best-known species of Xenopus?

A: The two best-known species of Xenopus are Xenopus laevis and Xenopus tropicalis.

Q: What are Xenopus laevis and Xenopus tropicalis studied as?

A: Xenopus laevis and Xenopus tropicalis are studied as model organisms for developmental biology, cell biology, toxicology, neuroscience, and for modeling human disease and birth defects.

Q: What is the polyploidy in Xenopus?

A: The genus is known for its polyploidy, with some species having up to 12 sets of chromosomes.

Q: What are the physical characteristics of Xenopus?

A: Xenopus frogs are all excellent swimmers and have powerful, fully webbed toes, though the fingers lack webbing. Three of the toes on each foot have conspicuous black claws.

Q: What region are Xenopus frogs native to?

A: Xenopus frogs are native to sub-Saharan Africa.