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PBS
How the Andes Mountains Might Have Killed a Bunch of Whales
At a site known as Cerro Ballena or Whale Hill, there are more than 40 skeletons of marine mammals -- a graveyard of ocean life dating back 6.5 million to 9 million years ago, in the Late Miocene Epoch. But the identity of the killer...
NOAA
Noaa: Estuary Education: Plants (Circle of Life)
A segment from the film Waters of Life takes a look at the role of plants in the estuary, and the cycle of life that depends on them. [3:27]