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Join barefoot scientist Jesús Rivas in the murky marshes of Venezuela on his quest to understand these huge, fearsome reptiles. Up to 30 feet long, weighing many times more than the scientists studying them, anacondas are difficult subjects at best, but the National Geographic team captures brilliant footage of them swimming, resting, mating, and hunting prey.

Jesús Rivas

Marcia Savella
Narrator (voice)
Making An Ancient Forest - Kalkalpen National Park
2015