Eons
The Traits That Spawned the Age of Mammals (S05E17)
Many characteristics we associate with mammals actually emerged quite early, even dating back to the era of dinosaurs. In fact, some of these trait...
S05E17
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Season 5 Episodes
S05E02 - The Reign of the Hell Ants
Eons
S05E03 - The Pandemic That Lasted 15 Million Years
Eons
S05E04 - When We First Talked
Eons
S05E05 - The Return of Giant Skin-Shell Sea Turtles
Eons
S05E06 - The Genes We Lost Along the Way
Eons
S05E07 - Our Bizarre, Possibly Venomous, Relative
Eons
S05E08 - How Worm Holes Ended Wormworld
Eons
S05E09 - How Humans Became (Mostly) Right-Handed
Eons
S05E10 - How Chilis Got Spicy (and Why We Love the Burn)
Eons
S05E11 - How To Survive the Little Ice Age
Eons
S05E12 - When Crocs Thrived in the Seas
Eons
S05E13 - When Trees Took Over the World
Eons
S05E14 - How Weasels Got Skinny
Eons
S05E15 - Where Are All The Squid Fossils?
Eons
S05E16 - Did These Giant Sloths Poop Themselves to Death?
Eons
S05E17 - The Traits That Spawned the Age of Mammals
Eons
S05E18 - The Island of the Last Surviving Mammoths
Eons
S05E19 - Where Are All the Medium-Sized Dinosaurs?
Eons
S05E20 - How the Starfish Got Its Arms
Eons
S05E21 - The Creature That Stumped Darwin
Eons
S05E22 - How Pollination Got Going Twice
Eons
S05E23 - How a Supervolcano Ignited an Evolutionary Debate
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S05E24 - How a Mass Extinction Event Created the Amazon
Eons
S05E25 - When Mammals Only Went Out At Night
Eons
S05E26 - How Ancient Whales May Have Changed the Deep Ocean
Eons
S05E27 - How Dinosaurs Coupled Up
Eons
S05E28 - When It Was Too Hot for Leaves
Eons
S05E29 - Why The Paleo Diet Couldn't Save The Neanderthals
Eons
S05E30 - The Fossil Record In Your Mouth
Eons