Tropical riparian ecosystems—those found along rivers and wetlands—recovered much faster than expected following the end-Permian mass extinction around 252 million years ago, according to new research ...

Marco Cattaneo looks at boulder 0, the first boulder found with footprints. Beneath the snowy slopes lay a prehistoric surprise: an ecosystem that predates the dinosaurs, revealed by melting snow ...

Therapsids, the ancient relatives of mammals, once roamed Earth in great numbers during the middle to late Permian period. These land-dwelling creatures would later evolve into mammals, but their ...

An artistic rendering of an evening approximately 252 million years ago during the late Permian in the Luangwa Basin of Zambia. The scene includes several saber-toothed gorgonopsians and beaked ...

The mass extinction that killed 80% of life on Earth 250 million years ago may not have been quite so disastrous for plants, new fossils hint. Scientists have identified a refuge in China where it ...

You wander a museum, glance at some dinosaur bones and think that one skull looks a little funny. You’ve discovered a new species. Sure, that sounds unlikely. But that's what happened when a North ...

Christian Sidor is a professor in the UW Department of Biology and curator of Vertebrate Paleontology at the Burke. And for the last 18 years, he’s been traveling back and forth to Zambia and Tanzania ...