Season 3 Episodes7
Cast1

Jeremy Wade
Self - Presenter
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Ranked #6 of 7 in Season 3•−0.1 vs season avg
Jeremy Wade travels to the Paraná River in the remote corner of Argentina to investigate the death of a young girl. This creature is not armed with bone-crunching jaws or razor sharp teeth, but a razor-sharp blade tipped with tissue-destroying venom.

Jeremy Wade
Self - Presenter
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"Silent Assassin" is episode 3 of River Monsters season 3. It scored 8.1/10 from 76 votes, ranking #6 of 7 episodes this season (season average 8.2). It aired on April 24, 2011.