What makes a good happy hour? Without getting too philosophical over the concept of "happiness" (is it a state of being?

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.

Newly discovered evidence of Australia's earliest species of tree frog challenges what we know about when Australian and ...

They spend their days perched on these plants or foraging in the nearby leaf litter, likely eating the toxic insects that ...