A video narrated by Neil deGrasse Tyson that explores what caused the Permian extinction, the mother of all extinctions, 250 million years ago? [13:14]

Hank takes us on a trip through time to revisit the five major mass extinction events that have impacted species over the Earth's history, and leaves us with some thoughts about what could possibly be the sixth event - the one caused by...

Follow Des Collins, a paleontologist, as he looks back into deep time to study the Cambrian explosion in this video. He studies fossils from the Burgess Shale in Canada. He describes the excitement and difficulty of putting together an...

Kristi Curry-Rogers wants to understand how dinosaurs got to their gigantic sizes. Follow her on her journey as a paleontologist as she looks for fossilized dinosaur bones and then analyzes the bone tissue to see how fast the animal...