:04:00
and the wild reindeer
called caribou.
:04:11
Where frozen tundra
limits vegetation, meat is life.
:04:15
Most of the year,
it is kill or starve.
:04:51
The hunters prosper here
across millennia
:04:55
but as the receding lce Age
:04:56
opens the wall of glaciers
to the south
:04:59
most move on with the herds
:05:01
into the virgin continents
beyond.
:05:06
Their descendants will become
Apache and Sioux, Aztec and Maya
:05:10
lnca and Amazonian.
:05:13
yet some remain in Alaska.
:05:17
For them, this is a world of
mysterious forces and spirits.
:05:47
To science,
the Aurora Borealis is created
:05:50
by streams of charged particles
from the sun
:05:53
colliding with the atmosphere.
:05:56
To some Native Americans,
the Northern Lights
:05:59
were children not yet born
at play in the heavens.