River Monsters2009 | TV Show

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A biologist explores the world's rivers and lakes for freshwater fish that may prey on humans.

Premiered: April 5, 2009

Rating: TV-PG

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Season 4, Episode 1 American Killers

First Aired: April 1, 2012

In the Season 4 premiere, Jeremy investigates reports of menacing creatures in U.S. waterways, including the Indian River Lagoon in Florida; the Lake of the Ozarks in Missouri; and Trinity River in Texas.

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Previous Episode

Jungle Killer

Season 3, Episode 7

May 30, 2011

Next Episode

Pack of Teeth

Season 4, Episode 2

April 8, 2012

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