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How Did This Butterfly Get So Old?
Season 48 Episode 20
NOVA
About the Episode
While most butterflies feed on nectar only, this genus of butterfly also feeds on pollen.
Aired: | Expires: | Runtime: 2m 56s
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Extras
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Discover the powerful volcanic eruptions that have shaped worlds across our solar system.
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This Powerful Psychedelic May Help Treat Opioid Addiction
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Can Technology Detect Deepfakes Better Than Humans Can?
AI-generated photos are video are getting so good that it’s hard for humans to tell what’s real.
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Solar System: Strange Worlds Preview
What are the weirdest worlds in our solar system, and how did they come to be?
0:30
Solar System: Storm Worlds Preview
Discover the dramatic forces creating spectacular weather on neighboring planets and moons.
0:30
What Happened to the Hole in the Ozone Layer?
In the 1980s scientists discovered a crucial part of the Earth’s atmosphere was extremely thin.
3:13
Could Jurassic Park Actually Happen?
Will we ever get dinosaur DNA?
1:55
How Deepfakes Manipulate Reality
Deepfakes are getting more convincing and easier to make.
4:22
Legacy of the Land
Native American communities share their culture and knowledge to address climate change.
Harvesting the Future
Ak-chin farming makes desert agriculture possible, and now, those practices help communities today.
9:22
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