The threat of invasive species - Jennifer Klos
View full lesson: http://ed.ted.com/lessons/the-threat-of-invasive-species-jennifer-klos Massive vines that blanket the southern United States, climbing high as they uproot trees and swallow...
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Massive vines that blanket the southern United States, climbing as high as 100 feet as they uproot trees and swallow buildings. A ravenous snake that is capable of devouring an alligator. Rabbit populations that eat themselves into starvation. These aren't horror movie concepts. They're real stories, but how could such situations exist in nature? All three are examples of invasive species, organisms harmful not because of what they are, but where they happen to be. The kudzu vine, for example, had grown quality in its native east Asia, eaten by various insects and dying off during the cold winters. But its fortunes changed when it was imported into the southeastern United States for porch decoration and cattle feed. Its planting was even sub...
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Massive vines that blanket the southern United States, climbing as high as 100 feet as they uproot trees and swallow buildings. A ravenous snake that is capable of devouring an alligator. Rabbit populations that eat themselves into starvation. These aren't horror movie concepts. They're real stories, but how could such situations exist in nature? All three are examples of invasive species, organisms harmful not because of what they are, but where they happen to be. The kudzu vine, for example, had grown quality in its native east Asia, eaten by various insects and dying off during the cold winters. But its fortunes changed when it was imported into the southeastern United States for porch decoration and cattle feed. Its planting was even sub...
