Can Dogs Replace Drugs?

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How Pooches Can Replace Drugs         Dogs may help correct certain human mental health disorders by affecting brain chemistry and function. Read More WATCH VIDEO: Are We All Internet Addicts? Should Internet addiction be classified as an official disorder? Bieber Fever to Reach Space         Last year there were calls to blast teenage pop sensation, Justin Bieber, into space. Now, he's booked a ticket. Read More WATCH VIDEO: Branson: The Sexiest Spaceship Ever Virgin Galactic's newest vessel is the world's first commercial spacecraft. Earthquakes Can Rupture at Supersonic Speeds         Duck and cover! Scientists have discovered a new kind of suped-up earthquake that can generate the seismic equivalent of a sonic boom. Read More WATCH VIDEO: Tsunami Warning Center Uses Top Technology Check out one of the most sophisticated tsunami warning systems in the world. How Animals See the World         We know some animals have better eyesight than we lowly humans, but it's not just cats who see well in the dark. 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 © 2013 Discovery Communications, LLC