Providing Support for PBS.org
Ages Past
Scientists study things left behind to tell the story of what happened in the past. Paleontologists look at bones to help us understand how ancient creatures once survived. Archaeologists and anthropologists study how people lived hundreds or even thousands of years ago. Find out more about what took place in ages past.

D4K: The Science of Lewis and Clark
Lewis and Clark made major scientific discoveries on their journey West. What were some?
D4K: The Science of Lewis and Clark

D4K: Dinosaurs with Jack Horner
Learn about dinosaurs from leading paleontologist Jack Horner.
D4K: Dinosaurs with Jack Horner
Support for PBS.org provided by: