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Season 6 Episode
- Season 5 What Happened to the World's Biggest Beaver?
- Season 5 The Reign of the Hell Ants
- Season 5 The Pandemic That Lasted 15 Million Years
- Season 5 When We First Talked
- Season 5 The Return of Giant Skin-Shell Sea Turtles
- Season 5 The Genes We Lost Along the Way
- Season 5 Our Bizarre, Possibly Venomous, Relative
- Season 5 How Worm Holes Ended Wormworld
- Season 5 How Humans Became (Mostly) Right-Handed
- Season 5 How Chilis Got Spicy (and Why We Love the Burn)
- Season 5 How To Survive the Little Ice Age
- Season 5 When Crocs Thrived in the Seas
- Season 5 When Trees Took Over the World
- Season 5 How Weasels Got Skinny
- Season 5 Where Are All The Squid Fossils?
- Season 5 Did These Giant Sloths Poop Themselves to Death?
- Season 5 The Traits That Spawned the Age of Mammals
- Season 5 The Island of the Last Surviving Mammoths
- Season 5 Where Are All the Medium-Sized Dinosaurs?
- Season 5 How the Starfish Got Its Arms
- Season 5 The Creature That Stumped Darwin
- Season 5 How Pollination Got Going Twice
- Season 5 How a Supervolcano Ignited an Evolutionary Debate
- Season 5 How a Mass Extinction Event Created the Amazon
- Season 5 When Mammals Only Went Out At Night
- Season 5 How Ancient Whales May Have Changed the Deep Ocean
- Season 5 How Dinosaurs Coupled Up
- Season 5 When It Was Too Hot for Leaves
- Season 5 Why The Paleo Diet Couldn't Save The Neanderthals
- Season 5 The Fossil Record In Your Mouth
- Season 5 When Pterosaurs Walked
Eons - Season 5 Episode 17 The Traits That Spawned the Age of Mammals
0.00 10 minutes Lots of the traits we think of as defining us as mammals show up pretty early, during the time of the dinosaurs. And, in some cases, they show up a lot earlier and in things that weren’t mammals at all.
