Siberian Mummies in Copper Masks Pose Mystery

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Siberian Mummies in Copper Masks Pose Mystery         An unusual find of 34 mummies has archaeologists wondering who these people were -- and why they wore copper masks. Read More WATCH VIDEO: Cool Jobs: Mummy Hunter Dr. Zahi Hawass, former chief of Egypt's Supreme Council of Antiquities, sits down with DNews. How Did Mars Ever Have Liquid Water?         To understand Mars' climatic history, scientists turn to a rather inventive method of climate forensics. Read More WATCH VIDEO: Did a Meteorite Finally Reveal Life on Mars? Ian O'Neill reveals some of the possible implications of evidence of water on a meteorite from Mars. Frogs Shrinking and Squeaking as Climate Warms         The tweets of Puerto Rico's unofficial mascot, the common coqui frog, became higher pitched during the past two decades, while the animals grew shorter. Read More WATCH VIDEO: 3 Weird Frog Discoveries! From birthing offspring in their stomachs to finding a frog smaller than a dime, Trace discusses three recent weird frog discoveries. Why Sports Are Unfair         It seems like there are terrible calls made in nearly every sport. Learn why some refs might be subconsciously making the wrong call. 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