Otherworldly landscapes, petroglyphs, and plenty of critters make this Arizona park particularly special. Here’s how to visit.
Researchers reveal Prototaxites, a giant Devonian fossil, was not a fungus or plant but a unique extinct lineage.
Why it's incredible: The forest preserves some of the oldest trees in the world. The Cairo Fossil Forest is a unique collection of 385 million-year-old trees preserved in an abandoned quarry in ...
Scientists found a 307 million-year-old fossil, Tyrannoroter heberti, revealing one of the earliest known land vertebrates ...
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