Why you should watch Star Trek: Discovery, The Deuce, and more
A biologist explores the world's rivers and lakes for freshwater fish that may prey on humans.
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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