Learn more about the lineages of Australian and South American tree frogs, which separated approximately 55 million years ago at the latest, according to a new analysis of fossils. Australia and South ...
Amphiterra imagines an alternate Earth where wetter conditions let early amphibians outcompete reptiles and begin a 252-million-year reign of bizarre frog evolution. Eventually, one lineage produces ...
Australia and South America weren't always so separate. At one time, many millions of years ago, these two continents were connected, along with others, in the southern supercontinent of Gondwana.