Browsing 310 - 320 results of 503 clips


Ice Stories:  Adélie Penguins Walking across Sea Ice (Clip)
Running Time:
00:00:37
Adélie penguins walking across ice on the Ross Sea, Antarctica.

Project: Ice Stories: Dispatches from Polar Scientists | Browse All

Date: December 2, 2008
Format: Expedition
Category: Science in Action
Subject(s): Life Science/Biology

Keywords: penguins, adélies, behavior, antarctica, ross sea


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Windows Media: 1500K  
QuickTime: 1280K  
Ice Stories:  Adélie Penguins Tending the Nest (Clip)
Running Time:
00:00:11
Adélie penguins sitting on eggs in their nests at Cape Royds, Antarctica.

Project: Ice Stories: Dispatches from Polar Scientists | Browse All

Date: December 2, 2008
Format: Expedition
Category: Science in Action
Subject(s): Life Science/Biology

Keywords: adélies, penguins, nests, eggs, behavior, cape royds, antarctica


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Windows Media: 900K  
Ice Stories:  Adélie Penguins Tobogganning (Clip)
Running Time:
00:00:45
Adélie penguins engaging in a behavior called tobogganning. Like sledding, penguins cruise along the slick ice on their bellies -- a faster way of traveling than by walking.

Project: Ice Stories: Dispatches from Polar Scientists | Browse All

Date: December 2, 2008
Format: Expedition
Category: Science in Action
Subject(s): Life Science/Biology

Keywords: adélies, penguins, behavior, cape royds, antarctica


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Windows Media: 1500K  
QuickTime: 1280K  
Ice Stories:  Traverse across Frozen McMurdo Sound (Clip)
Running Time:
00:02:40
This video captures the energy and excitement of traversing across the sea ice to the Offshore New Harbor Field Camp.

Project: Ice Stories: Dispatches from Polar Scientists | Browse All

Date: November 18, 2008
Format: Expedition
Category: Science in Action
Subject(s): Geology/Earth Science

Keywords: traverse, mcmurdo sound, sea ice, skidoos, snowmobiles, antarctica

Links: Dispatch: Journey to Our Field Camp

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Windows Media: 1000K  
QuickTime: 1128K  
Evidence:  Who Is (Clip)
Running Time:
00:03:07
Geneticist Mark Stoneking discusses a special type of genetic material called mitochondrial DNA gets passed directly from mother to child. Largely unchanged from generation to generation, this genetic material gives researchers a way to track populations back in time.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): Life Science/Biology, General Science

Keywords: mitochondrial dna

Links: Transcript (in English)
Transcript (en Espanol)

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Evidence:  Learning from Neanderthal DNA (Clip)
Running Time:
00:01:30
Evolutionary geneticist Ed Green discusses the key questions researchers hope to answer by analyzing the Neanderthal genome.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): General Science, Life Science/Biology

Keywords: neanderthal genome

Links: Transcript (in English)
Transcript (en Espanol)

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Evidence:  What Can We Learn from a Tooth? (Clip)
Running Time:
00:00:59
Anthropologist Tanya Smith explains that invisible microstructure inside teeth creates a durable record of life history, including events such as birth, illness, famine, stress, and death.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): Life Science/Biology, General Science

Keywords: teeth

Links: Transcript (in English)
Transcript (en Espanol)

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Evidence:  How Do Bones and Teeth Grow? (Clip)
Running Time:
00:01:53
Anthropologist Jean-Jacques Hublin explains that unlike teeth, bones undergo a lifelong process called remodeling, in which they are constantly being destroyed and recreated.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): Life Science/Biology, General Science

Keywords:

Links: Transcript (in English)
Transcript (en Espanol)

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Evidence:  Virtual Skull Reconstruction (Clip)
Running Time:
00:02:25
Anthropologist Philipp Gunz explains the process of virtual fossil reconstruction, a technique that can reverse the damage done to fossils by time and the elements.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): Life Science/Biology, General Science

Keywords: fossil, fossil reconstruction

Links: Transcript (in English)
Transcript (en Espanol)

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Evidence:  Why Are Fossils So Rare? (Clip)
Running Time:
00:00:57
Anthropologist Katerina Harvati explains the rare convergence of circumstances that are necessary for the discovery of a fossil specimen.

Project: Evidence: How Do We Know What We Know? | Browse All

Date: November 11, 2008
Format: Interview
Category: Popular Science
Subject(s): Life Science/Biology, General Science

Keywords:

Links: Transcript (in English)
Transcript (en Espanol)

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