Is Ancient Oceans coming back?

Ancient Oceans ended on December 2, 2019, on CuriosityStream.

The show was a documentary series that explored the history of Earth's oceans during the Ordovician and Devonian periods. It focused on how marine life diversified significantly after the Ordovician mass extinction, leading into the Devonian period when fish species flourished.

Each episode had a runtime of approximately 11 minutes. The series premiered on November 4, 2019, and concluded with its second episode on December 2, 2019.