Wonders of the National Parks: A Geology of North America

Petrified Forest and Other Fossil Parks (1x26)

Data di messa in onda: Ott 22, 2015

See Petrified Forest National Park, a colorful landscape littered with fossil trees that shaded Earth's earliest dinosaurs. Here and in other parks in the U.S. and Canada, fossilized flora and fauna open a window on ancient ecosystems, extinct species, and the history of life on Earth.