Someone in northwestern Australia heard a “laughing” sound coming from the backyard. They recorded the sound and submitted it to a citizen science database. Scientists listened to this laugh-like ...

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.

Scientists have now discovered the oldest ancestor for all the Australian tree frogs, with distant links to the tree frogs of South America. Newly discovered evidence of Australia's earliest species ...