Today’s puzzle is a table of crystals at the Memphis Mineral, Fossil and Gem Show and was taken by Greg Campbell.

Find out more about Body Fossils and Trace Fossils. Fossils can be categorized in two basic types: body fossils and trace fossils. Body fossils help scientists learn what plants and animals looked ...

What can fossilized poop tell us about prehistoric life? A surprising amount, it turns out. A new study, published in the journal Geobiology, reveals that ancient feces—known as coprolites—can ...