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Join our expert "TechKnow" contributors Phil Torres, Shini Somara, Crystal Dilworth and Lindsay Moran as they explore new technology and its impact on our lives. Phil spends a week with tiger sharks—and the scientists who study them, working to help preserve the declining populations of these often misunderstood animals.
WATCH: TechKnow explores how advances in bionic technologies are changing lives.
WATCH: TechKnow reports on a kid genius at NASA who puts low-cost artificial limbs within reach.