52:06
Surviving Earth's 5 Mass Extinctions: A Prehistoric Journey | SLICE WILD | FULL DOC
53:38
Making North America: When Dinosaurs Roamed | Full Documentary | NOVA | PBS
37:13
Have Aliens Been Visiting Earth for Millions of Years? | Ancient Aliens | History
2:27:05
What Happened When Ice Ages Ended 12,000 Years Ago? | HISTORY FOR SLEEP
1:40:50