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Author: DiscoveryNetworks
Description: FROZEN PLANET premieres Sunday, March 18, 2012 at 8PM e/p on Discovery. | http://dsc.discovery.com/tv/frozen-planet/#mkcpgn=ytdsc1 | A brinicle, or brine icicle, plunges toward the seabed from the Antarctic ice shelf above, freezing marine invertebrates in its path and killing everything it touches. This had never been filmed before Frozen Planet.
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