How Far Back In Earth's History Could You Have Survived?
56:39
What Was The Earth Like 500 Million Years Ago?
59:33
What Was The First Complex Life on Earth?
1:08:15
The Earliest Years Of Earth's 4.6 Billion Year History
1:33:38
What Caused The Cambrian Explosion?
49:59
How Doggerland Sank Beneath The Waves (500,000-4000 BC) // Prehistoric Europe Documentary
1:31:07
How The Earth Was Made: From Molten Rock to Green Planet | Full Special
41:18
The Dark Energy Mystery [4K]
42:46