Extras
On the plains of South Africa, an army of dung beetles recycle the dung of large mammals.
Clip:
S1
E4
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9:52
Ummat Somjee goes to Thailand to observe the cultural tradition of fighting beetles.
Clip:
S1
E4
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8:19
An intimate portrayal of three families confronting the unique challenges of Alzheimer’s.
Preview:
S26
E17
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0:30
Gavin Svenson heads to the Brazilian rainforest to sample the diversity of mantises.
Clip:
S1
E3
|
10:07
Nancy’s wedding plans take a surprising turn. Sister Catherine takes her First Vows.
Preview:
S14
E8
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0:30
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
Preview:
S52
E11
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0:30
An elusive photographer uses street art tactics to share his previously unknown work with the world.
Preview:
S26
E19
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0:30
Jesse Barber and Akito Kawahara study the evolutionary arms race between bats and moths.
Clip:
S1
E2
|
7:55
Monarch butterflies winter in the fir forests of Michoacan, Mexico, after an epic migration.
Clip:
S1
E2
|
4:58
Joyce faces a disciplinary hearing over a recent complaint which has been upheld.
Preview:
S14
E7
|
0:30
Latest Episodes
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Be Smart Season 13
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Be Smart Season 10
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Be Smart Season 8
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Be Smart Season 1
This is one of the weirdest mysteries of human evolution: Why do we have grandmas?
Episode:
S13
E2
|
17:11
Insects and birds have an awesome superpower that repels water and keeps them airborne in the rain.
Episode:
E1
|
11:06
Why do some people taste music or hear colors? Let’s talk about synesthesia.
Episode:
S12
E18
|
12:28
How a chemical in lizard spit inspired one of the most important medical advancements.
Episode:
S12
E17
|
14:35
These diamond makers create one of the most amazing materials on Earth — from dead people.
Episode:
S12
E16
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12:15
Learn nature’s ultimate game of hide-and-seek, and the way to win this game is all in the brain.
Episode:
S12
E15
|
11:20
Nature has had to come up with some crazy ways to survive winter. None are weirder than hibernation.
Episode:
S12
E14
|
11:17
Political scientist Don Green joins Joe to figure out the complex psychological and social factors t
Episode:
S12
E13
|
12:40
Why do certain sounds make some of us so upset?!
Episode:
S12
E12
|
16:27
Despite what you may have heard or learned in school, the sun is NOT the center of the solar system.
Episode:
S12
E11
|
11:43