Kallie Moore manages the paleontology collection at the University of Montana and co-hosts the YouTube channel PBS Eons. She also recently published a children’s nonfiction book, Tales of the Prehistoric World: Adventures from the Land of the Dinosaurs (Neon Squid Books, 2022). In March, she...

The Perpetual Notion Machine speaks with geologist Eric Carson about the geological history of Wisconsin’s Driftless Area, where the lack of glacial deposits and glacial landforms indicate that this portion of the midwest has apparently never been covered by glaciers (source: Wisconsin Geological...