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What Gives the Morpho Butterfly Its Magnificent Blue?

What Gives the Morpho Butterfly Its Magnificent Blue?

Season 1 Episode 5
3:03
The Fantastic Fur of Sea Otters

The Fantastic Fur of Sea Otters

Season 1 Episode 6
3:23
How Electric Light Changed the Night

How Electric Light Changed the Night

Season 1 Episode 7
3:05
In the Race for Life, Which Human Embryos Make It?

In the Race for Life, Which Human Embryos Make It?

Season 1 Episode 8
3:38
Banana Slugs: Secret of the Slime

Banana Slugs: Secret of the Slime

Season 1 Episode 9
3:51
From Drifter to Dynamo: The Story of Plankton

From Drifter to Dynamo: The Story of Plankton

Season 1 Episode 10
3:01
Newt Sex: Buff Males! Writhing Females! Cannibalism!

Newt Sex: Buff Males! Writhing Females! Cannibalism!

Season 1 Episode 11
3:37
What Happens When You Put a Hummingbird in a Wind Tunnel?

What Happens When You Put a Hummingbird in a Wind Tunnel?

Season 1 Episode 12
3:25
Have You Met a Hagfish? It’s About Slime.

Have You Met a Hagfish? It’s About Slime.

Season 10 Episode 1
3:52
Earthworm Love is Cuddly ... and Complicated

Earthworm Love is Cuddly ... and Complicated

Season 10 Episode 2
4:10
How Does the Mussel Grow its Beard?

How Does the Mussel Grow its Beard?

Season 10 Episode 3
4:00
Toad Tongues Slay With Seriously Sticky Spit

Toad Tongues Slay With Seriously Sticky Spit

Season 10 Episode 4
3:36
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Deep Look

The Hidden Perils of Permafrost

Season 1 Episode 4

Mysterious bacteria lay dormant in the Arctic permafrost.
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