When It Was Too Hot for Leaves

What Happened to the World's Biggest Beaver?

The Reign of the Hell Ants

The Pandemic That Lasted 15 Million Years

When We First Talked

The Return of Giant Skin-Shell Sea Turtles

The Genes We Lost Along the Way

Our Bizarre, Possibly Venomous, Relative

How Worm Holes Ended Wormworld

How Humans Became (Mostly) Right-Handed

How Chilis Got Spicy (and Why We Love the Burn)

How To Survive the Little Ice Age

When Crocs Thrived in the Seas

When Trees Took Over the World

How Weasels Got Skinny

Where Are All The Squid Fossils?

Did These Giant Sloths Poop Themselves to Death?

The Traits That Spawned the Age of Mammals

The Island of the Last Surviving Mammoths

Where Are All the Medium-Sized Dinosaurs?

How the Starfish Got Its Arms

The Creature That Stumped Darwin

How Pollination Got Going Twice

How a Supervolcano Ignited an Evolutionary Debate

How a Mass Extinction Event Created the Amazon

When Mammals Only Went Out At Night

How Ancient Whales May Have Changed the Deep Ocean

How Dinosaurs Coupled Up

Why The Paleo Diet Couldn't Save The Neanderthals

The Fossil Record In Your Mouth

When Pterosaurs Walked