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How the Morpho Butterfly Gets its Iridescent Color

How the Morpho Butterfly Gets its Iridescent Color

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2:22
From Prison to Careers in STEM

From Prison to Careers in STEM

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8:12
How Did This Butterfly Get So Old?

How Did This Butterfly Get So Old?

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2:56
Fossilized Dung Reveals Clues About Dinosaurs' Diet

Fossilized Dung Reveals Clues About Dinosaurs' Diet

Video
3:06
Did Some Dinosaurs Breed in the Arctic?

Did Some Dinosaurs Breed in the Arctic?

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3:00
What Did Dinosaurs in Alaska Eat During Winter?

What Did Dinosaurs in Alaska Eat During Winter?

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2:36
Can South Carolina's Salt Marshes Be Saved?

Can South Carolina's Salt Marshes Be Saved?

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8:27
These Artifacts and Foods Tie Modern Maya to the Past

These Artifacts and Foods Tie Modern Maya to the Past

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4:04
What's Causing Water to Bubble in the Arctic?

What's Causing Water to Bubble in the Arctic?

Video
4:21
LIDAR Technology Helps Uncover a Maya Metropolis

LIDAR Technology Helps Uncover a Maya Metropolis

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3:09
Portable Homes Help Communities Adapt to Climate Change

Portable Homes Help Communities Adapt to Climate Change

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4:18
Can Poop Help Protect Rhinos from Poachers?

Can Poop Help Protect Rhinos from Poachers?

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3:03
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NOVA

Could Antiviral Pills Change the Course of the Pandemic?

Here's how Covid-19 antiviral pills from Pfizer and Merck and Ridgeback work, how effective they are, and how they might change the course of the pandemic.