tvcal
Eons

Eons

2017Returning Series6 Seasons246 EpisodesTMDB
PBS Digital StudiosYouTube

Join hosts Hank Green, Kallie Moore, and Blake de Pastino as they take you on a journey through the history of life on Earth. From the dawn of life in the Archaean Eon through the Mesozoic Era — the so-called “Age of Dinosaurs” -- right up to the end of the most recent Ice Age. The evolutionary history of mammals including humans and other modern species is explored with these amazing paleontology experts.

Created by: Hank Green
Season 6 · Episode 4

How Vertebrates Got Teeth... And Lost Them Again

Feb 8, 2022·10m

As revolutionary as teeth were, they would go on to disappear in some groups of vertebrates. But why?

Where to Watch

Loading...

Streaming data provided by JustWatch

Episode FAQ

Direct answers for episode-level questions and details.

When did Eons Season 6 Episode 4 air?

Eons Season 6 Episode 4 aired on February 8, 2022.

How long is Eons Season 6 Episode 4?

This episode runs for approximately 10 minutes.

Comments

Comments coming soon

Discuss episodes with other viewers