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00:00:37
Adélie penguins walking across ice on the Ross Sea, Antarctica.

00:00:11
Adélie penguins sitting on eggs in their nests at Cape Royds, Antarctica.

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.

00:02:58
In this audio dispatch, correspondent Jack Walter describes his first week at the team's field camp on the West Antarctic Ice Sheet. Hear about their research on lakes under the glaciers and get a slice of life as a remote polar scientist.

00:03:56
In this audio dispatch, correspondent Saffia Hossainzadeh describes her journey to her team's deep field site via a stop at Siple Dome station. In part one, hear about the difficulties involved in escorting 700 pounds of explosives through Antarctica.

00:02:27
In this audio dispatch, correspondent Saffia Hossainzadeh describes her journey to her team's deep field site via a stop at Siple Dome station. In part two, hear about our combat-style landing at Siple Dome’s remote air strip.

00:02:40
This video captures the energy and excitement of traversing across the sea ice to the Offshore New Harbor Field Camp.

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.

00:01:30
Evolutionary geneticist Ed Green discusses the key questions researchers hope to answer by analyzing the Neanderthal genome.

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.