When Fish Wore Armor
8:32
How the Squid Lost Its Shell
10:07
When Crocs Thrived in the Seas
9:57
When Ichthyosaurs Led a Revolution in the Seas
9:08
When Fish First Breathed Air
32:05
The age of fish and the conquest of the land : Devonian
12:21
How Sloths Went From the Seas to the Trees
11:41
When Giant Scorpions Swarmed the Seas
8:55