How the Sun Changes Your DNA

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How the Sun Changes Your DNA         A sunburn or tan is the obvious result of sun exposure to skin, but how exactly does the sun cause less visible changes?  Read More WATCH VIDEO: Ticks: Bloodsucking Ninjas of Summer It's not just sun that poses a summertime danger. Get tips on avoiding disease-carrying ticks.  Scorpions Build Mansions with Sun Rooms, Cool Beds         The stinging creatures construct miniature homes in the desert that are big on comfort and perfectly suit the builder's needs. Read More WATCH VIDEO: Building the Perfect Shark Exhibit A state-of-the-art exhibit now hosts 20 stunning sharks. What does it take to acclimate sharks to their new home? Viking 'Hammer of Thor' Unearthed          An inscription on a 1,000-year-old amulet confirms that small Viking charms do represent Thor's hammer.  Read More WATCH VIDEO: Mythical Viking Sunstone is REAL How were the Vikings such remarkable mariners? Scientists have found the answer buried deep in a 16th-century shipwreck. What's the One Fear All Humans Have in Common?         Is something sneaking up on you? It doesn't even have to be sneaking, for us to be afraid of it. Turns out humans have closeness issues. 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