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Detective Techniques
This Season's Highlights
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WATCH SEASON 7 HIGHLIGHTS .

(Dur: 4.31)

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FEATURE - Fiber Samples Slideshow

Cotton Cotton
Cotton

Cotton thread comes from the many bolls that grow from the cotton plant. Inside each boll are seeds which sprout unicelled "hairs" that are removed and twisted into cotton fiber. One cotton boll can produce up to 300 miles of these hairs.