Imagine a moment from the Age of Dinosaurs frozen in time: primitive birds, bees, insects, early mammals, plants, and of course, dinosaurs, all preserved in fine-grained fossils from China's Liaoning Province. more

It may come as a surprise to find that we're still living with many of the giant reptiles that survived the great extinction. more

"Frontline" takes a look at the state of democracy in Russia, as Vladimir Putin maneuvers to maintain influence. more

This program follows two former felons in different stages of life "on the outside." more