Orca Whales Stuck Up An Alaska River

Last word is the two adults died and no one has seen the juvenile.  Very said.  They must have gotten sick and it messed up their sonar.  http://www.ktuu.com/news/ktuu-biologists-report-first-sightings-of-orcas-in-nushagak-river-20111006,0,3285419.story
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This is an extremely rare event.
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Some of you may remember another whale getting stuck up a river.  The children's book about it is one of our favorites.  Humphrey survived, so it's a very uplifting story.

http://en.wikipedia.org/wiki/Humphrey_the_Whale