Nature: Invasion of the Killer Whales
Preview | 30s
"Invasion of the Killer Whales" – As Arctic ice shrinks and the expanse of open water grows, increasing numbers of killer whales are attracted to hunting grounds previously dominated by polar bears. (Also 11PM; Thu. 11/20 at 3AM; Sat. 11/22 at 6PM)
Aired: 11/19/14
Expired: 12/03/14
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