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  • Separating Twins Follow the amazing story of Trishna and Krishna, girls born joined at the head, as surgeons prepare to separate them. Airs February 8 at 9pm.

  • Extreme Cave Diving A team of intrepid scientists journey into one of Earth's most dangerous and beautiful underwater frontiers. Airs February 15 at 9pm.

  • Cracking Your Genetic Code We are on the brink of a new era of personalized, gene-based medicine. Are we ready for it? Airs March 28 at 9pm.

  • Hunting for the Elements From the producers of "Making Stuff" Watch a preview.

  • Bugs That Live on You From bed bugs to eyelash mites, a jungle of insects and arachnids thrives on and around the human body. Meet your critters.

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