How scientists can learn information about the past from fossils.
Watch archaeologists attempt to recreate the Permian food web and other traits of the era to learn more about the Permian extinction.
Reviews how scientists can learn information about the past from fossils.
The La Brea Tar Pits are a fabulous Pleistocene fossil site.
The Petrified Forest, Arizona contains fossils of nine extinct tree species and fossils created by other processes.
The John Day Fossil Beds in eastern Oregon have a weath of fossils that span a long period of time. The relative ages are well constrained becauase a volcanic ash has been radiometrically dated.