Much of what the world knows about the age of mammals is found beneath a vast landscape in America’s heartland. Enter a prehistoric world when mammals ruled supreme and embark on a fossil safari with paleo sleuths that reveals how changing climate transformed North America from hot, wet forests – to frozen grasslands.
To see the full documentary click Dig Deeper.
How did a volcano in Idaho turn a water hole in Nebraska into one of the richest deposits of fossil specimens ever found?
Use these classroom-ready lesson plans on PBS Learning Media to awaken the Paleo Sleuth in each of your students.