Buried in Australia's so-called dead heart, a trove of exceptional fossils, including those of trapdoor spiders, giant cicadas, tiny fish and a feather from an ancient bird, reveal a unique snapshot ...

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

Scientists named it Wautaugategu formidus. The name “Wautauga” comes from a nearby forest. “Formidus”, Latin for “warm”, nods ...

Originally from South America, the charismatic tegu made its way to the United States via the pet trade of the 1990s. After ...

The tegu, long thought to be an invasive species, turns out to have arrived in North America about 16 million years earlier ...

The extinct Malleodectidae family of carnivorous marsupials has become a little bit bigger with the addition of a newly ...

Today, tegus are considered invasive creatures in Florida, but a new paper suggests they’ve lived in the southeastern United ...

Tegus, once thought to be newcomers, actually roamed ancient Georgia during a global warm spell millions of years ago — a ...

Scientists have now discovered the oldest ancestor for all the Australian tree frogs, with distant links to the tree frogs of South America.

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.

Researchers uncover a new tegu species from a fossil vertebra in Florida, revealing ancient lizards once roamed North America ...

In new research published today in the Journal of Vertebrate Paleontology, we identify Australia’s earliest known species of ...