The evolutionary family tree is a sprawling, tangled masterpiece, and humans, frogs, and fish are all nestled on its vertebrate branch. The diagram of life’s history, known as a phylogenetic ...

The most comprehensive frog family tree to date is giving researchers a leap forward in their understanding of when amphibians evolved. By using a combination of fossil and molecular data, the ...

The True frogs (of family Ranidae), have the widest distribution of any frog family. They are abundant throughout the world, excluding Australia and Antarctica. (The only ranid species native to ...