Zeb Hogan travels to Spain in search of the invasive Wels catfish -- a monster fish capable of growing more than 8 feet long, eating birds, cats, and, as some legends claim -- even humans! The voracious predator is not native to the region, and biologists fear it could be destroying the local ecosystem. Teaming up with local fishing guides and scientists, Hogan investigates why this beast has flourished in Spain's Ebro River, how large it ultimately gets and whether indigenous species have declined as a result of this big fish. This special "popped" episode of Monster Fish delivers trivia, fun facts and behind-the-scenes tidbits on Zeb, his team and the catfish adventure. As the investigation gets under way learn the best technique for holding onto a catfish (grab it from the mouth!), what bizarre things have been found inside a Wels and the secret ingredients in "stinkbait".
Aired: 23 Jan 2017