When Giant Lemurs Ruled Madagascar
9:56
What Happened To Primates In North America?
10:53
When Giant Amphibians Reigned
10:09
Why We Only Have Ten Toes (It's a Long Story)
11:32
When The "Combat Wombat" Became An Apex Predator
12:21
How Sloths Went From the Seas to the Trees
10:24
How Worm Holes Ended Wormworld
7:06
When Giant Deer Roamed Eurasia
9:08