Piranha-Proof Body Armor

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Piranha-Proof Fish May Help Build Better Body Armor         Scientists hope to replicate the fish scales of a tough, ancient Amazonian fish that repels predators' bites. Read More WATCH VIDEO: Piranhas in Movies: Fact vs. Fiction Piranha 3D unleashes the ravenous, toothy fish on unsuspecting spring breakers and moviegoers. But what are the facts behind the piranha's myth? Flying Reptile Had Massive Teeth         The enormous pearly white choppers on the prehistoric beast were probably mostly used to scare off others. Read More WATCH VIDEO: Terror Bird Fought Like Muhammad Ali New research reveals that terror birds - large, prehistoric carnivores that evolved alongside dinosaurs - hunted their prey with quick, opportunistic strikes. Spray-On Wi-Fi Boosts Your Signal         Chamtech's aerosol antenna can turn a tree into a powerful transmitter. Read More WATCH VIDEO: Emergency Rooms Go Wireless The Mi-Tag, a wearable vital sign monitor, could bring emergency rooms into the wireless age. How Healthy Do You Think You Are?         Your answer may be more important than you think. Read More WATCH VIDEO: Doc Digs Digital Documents How hard is it to digitize our health records? Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! Follow us @Discovery_News. At Discovery we value your privacy. If you would like to be removed from Discovery News emails like this, please click here to our subscription center, where you can manage your account. We recently updated our privacy policy. This policy is effective as of 10/30/07. To see new policy click here . Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © 2010 Discovery Communications, LLC