Season 5

Video thumbnail: Eons The Hidden Genes That Make Us Human

Eons

The Hidden Genes That Make Us Human

Some of the most important genes were once considered genomic junk.

The Hidden Genes That Make Us Human

Video thumbnail: Eons That Time the American West Blew Up

Eons

That Time the American West Blew Up

How is it possible to have cataclysmic eruptions without any real cataclysm?

That Time the American West Blew Up

Video thumbnail: Eons How a Mass Extinction Changed Our Brains

Eons

How a Mass Extinction Changed Our Brains

Our brains actually shrank relative to our bodies in evolution.

How a Mass Extinction Changed Our Brains

Video thumbnail: Eons These Fossils Were Supposed To Be Impossible

Eons

These Fossils Were Supposed To Be Impossible

Hidden in rocks may have animal kingdom’s oldest known predator.

These Fossils Were Supposed To Be Impossible

Video thumbnail: Eons These Fossils Were Supposed To Be Impossible

Eons

These Fossils Were Supposed To Be Impossible

Hidden in rocks may have animal kingdom’s oldest known predator.

These Fossils Were Supposed To Be Impossible

Video thumbnail: Eons Could Neanderthals Use Symbolism?

Eons

Could Neanderthals Use Symbolism?

We explore what we have in common with our ancient cousins.

Could Neanderthals Use Symbolism?

Video thumbnail: Eons These Creatures Were Darwin's Greatest Enemy

Eons

These Creatures Were Darwin's Greatest Enemy

Beneath their shell, the crustaceans hold an evolutionary mystery.

These Creatures Were Darwin's Greatest Enemy

Video thumbnail: Eons When Our Culture Changed Our DNA

Eons

When Our Culture Changed Our DNA

We have become the ultimate niche builders.

When Our Culture Changed Our DNA

Video thumbnail: Eons How Did Our Most Famous Ancestor Really Die?

Eons

How Did Our Most Famous Ancestor Really Die?

The answer is part of a decades-long debate.

How Did Our Most Famous Ancestor Really Die?

Video thumbnail: Eons When A Marsupial Became An Apex Predator

Eons

When A Marsupial Became An Apex Predator

In Australia, evolution built a family of deadly predators.

When A Marsupial Became An Apex Predator

Video thumbnail: Eons We Met Neandertals Way Earlier Than We Thought

Eons

We Met Neandertals Way Earlier Than We Thought

We focus on the DNA we got from our Neanderthals.

We Met Neandertals Way Earlier Than We Thought

Video thumbnail: Eons How Plate Tectonics Gave Us Seahorses

Eons

How Plate Tectonics Gave Us Seahorses

Seahorses are one of the ocean's worst swimmers but their origin story is great.

How Plate Tectonics Gave Us Seahorses

Video thumbnail: Eons Are We All Actually Archaea?

Eons

Are We All Actually Archaea?

In recent years, Archaea's connection to us has been pretty huge and surprising.

Are We All Actually Archaea?

Video thumbnail: Eons Darwin Missed An Example of Evolution Right Under His Nose

Eons

Darwin Missed An Example of Evolution Right Under His Nose

Charles Darwin encountered a tiny fox-like creature during his famous voyage.

Darwin Missed An Example of Evolution Right Under His Nose

Video thumbnail: Eons Our Ancient Relative That Said 'No Thanks' To Life On Land

Eons

Our Ancient Relative That Said 'No Thanks' To Life On Land

While some fishapods were crawling out of water, others were diving right back in.

Our Ancient Relative That Said 'No Thanks' To Life On Land

Video thumbnail: Eons Where Did Water Come From?

Eons

Where Did Water Come From?

We think our water came from unlikely sources: meteorites, space dust, and even the sun.

Where Did Water Come From?