Iguazu Falls and Human Interference
In Iguazu Falls and Human Interference, learn how piraputanga leap out of the clear waters to feed on berries growing on the branches above. However, the future of animals in this area may be at risk from humans using nearby waters for hydroelectric power. This video is excerpted from BBC’s Seven Worlds, One Planet, a series featuring remarkable animal behavior from all seven continents.
Lesson Express
Q: What enables the piraputanga to get the fruit?
A: The fish jump and adjust in mid-air, but it’s the clear water that allows them to see the fruit.
Q: How much of South America’s energy comes from hydro-electricity?
A: Two-thirds of South America’s energy comes from hydroelectricity — more than any other region.
Q: What happens to the Iguazu Falls if the dams suddenly release too much water?
A: The falls can double in size, creating problems for the animals that live there.
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