For nearly 4 billion years, the continents of Earth were lifeless. But during the Ordovician, there was an explosion of life beneath the sea. Many strange creatures evolved, from eel-like conodonts to voracious cephalopods, until nearly all life was wiped out in our planet’s first mass extinction.

The Ordovician

Life in the sea rebounded with a vengeance in the Devonian. Dozens of monstrous predators emerged, like the 40-foot long Dunkleosteus. Nearly everything was wiped out in Earth’s second mass extinction. But the stage was set for an explosion of life on land.

The Devonian

In this prequel to Ancient Earth, travel back in time to the first two of the most powerful extinction periods in history.

All Episodes of Ancient Oceans

All Episodes of Ancient Oceans

Season 1

The Ordovician

Season 1 Episode 1 - Aired 8/23/2019

The Devonian

Season 1 Episode 2 - Aired 8/23/2019