When Giant Scorpions Swarmed the Seas

S3 · E1★ 0.0

When Humans Were Prey

S3 · E2★ 0.0

How Blood Evolved (Many Times)

S3 · E3★ 0.0

The Humans That Lived Before Us

S3 · E4★ 0.0

The Island of Shrinking Mammoths

S3 · E5★ 0.0

The Evolution of the Heart (A Love Story)

S3 · E6★ 0.0

How 7,000 Years of Epic Floods Changed the World

S3 · E7★ 0.0

The Island of Huge Hamsters and Giant Owls

S3 · E8★ 0.0

The Giant Bird That Got Lost in Time

S3 · E9★ 0.0

When We First Made Tools

S3 · E10★ 0.0

When Giant Scorpions Swarmed the Seas

S3 · E11★ 0.0

When We Tamed Fire

S3 · E12★ 0.0

The Mystery Behind the Biggest Bears of All Time

S3 · E13★ 0.0

The Croc That Ran on Hooves

S3 · E14★ 0.0

When We Took Over the World

S3 · E15★ 0.0

The Ghostly Origins of the Big Cats

S3 · E16★ 0.0

The History of Climate Cycles (and the Woolly Rhino) Explained

S3 · E17★ 0.0

The Hellacious Lives of the "Hell Pigs"

S3 · E18★ 0.0

How Evolution Works (And How We Figured It Out)

S3 · E19★ 0.0

When the Synapsids Struck Back

S3 · E20★ 0.0

When Ichthyosaurs Led a Revolution in the Seas

S3 · E21★ 0.0

When We Met Other Human Species

S3 · E22★ 0.0

How Volcanoes Froze the Earth (Twice)

S3 · E23★ 0.0

How Earth's First, Unkillable Animals Saved the World

S3 · E24★ 0.0

When Giant Deer Roamed Eurasia

S3 · E25★ 0.0

Was This Dinosaur a Cannibal?

S3 · E26★ 0.0

The Missing Link That Wasn’t

S3 · E27★ 0.0

The Raptor That Made Us Rethink Dinosaurs

S3 · E28★ 0.0

When Bats Took Flight

S3 · E29★ 0.0

How Pterosaurs Got Their Wings

S3 · E30★ 0.0

When Giant Lemurs Ruled Madagascar

S3 · E31★ 0.0

When Antarctica Was Green

S3 · E32★ 0.0

The Case of the Dinosaur Egg Thief

S3 · E33★ 0.0

When Hobbits Were Real

S3 · E34★ 0.0

Were These Monsters Inspired by Fossils?

S3 · E35★ 0.0

How We Domesticated Cats (Twice)

S3 · E36★ 0.0

When Giant Hypercarnivores Prowled Africa

S3 · E37★ 0.0

Why Male Mammoths Lost the Game

S3 · E38★ 0.0

The Forgotten Story of the Beardogs

S3 · E39★ 0.0

The Fuzzy Origins of the Giant Panda