Dinos Built for Combat: Photos

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Dinos Built for Combat: Photos         Thumb spikes, nose horns and tail clubs were just a few of the weapon-like structures dinosaurs evolved to fight epic battles. Read More WATCH VIDEO: The Dinosaurs You Love Are Fake Get the details on the fates of our most beloved dinosaurs. Neanderthal-Human Skulls Shed Light on Evolution         A new find helps explain why Neanderthals and modern humans look so different despite a common ancestor. Read More WATCH VIDEO: How Old Is the Human Race? How long have humans been walking the planet? Turns out, the answer is in our genes. Harley-Davidson Goes Electric         The nearly silent LiveWire model will run on a lithium-ion battery. Read More WATCH VIDEO: Flying Cars: Best or Worst Idea Ever? Sure, the idea of a flying car SOUNDS brilliant. But would it really be so cool? Pain-Free Tooth Cavity Repair? Coming Soon!         In as little as three years, dentists may drop a few notches on the most-feared list as a new device rebuilds sick teeth -- without pain! Watch 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 © 2014 Discovery Communications, LLC