Rio Athletes Shrug Off Zika as Olympics Begin

TECH SPACE HUMAN WORLD HISTORY ANIMALS EXPLORATION VIDEO View Online Rio Athletes Shrug Off Zika as Olympics Begin The risk of infection may be low, but teams are still taking precautions. READ MORE Science vs. Fiction: 'Suicide Squad' The new comic book movie continues an old sci-fi tradition -- extrapolating the possibilities of existing science and technology. READ MORE WATCH VIDEO: Why Do People Commit Suicide? DNEWS examines the underlying factors of this epidemic. Is Flossing Your Teeth Worthless? News headlines across the country suggest that flossing is worthless, but that's not the whole story. READ MORE WATCH VIDEO: How Human Teeth Evolved in Fish Enamel helped scientists discover that teeth evolved from ancient fish scales. Could a Third-Party Candidate Be President? It's been over 160 years since a third-party candidate won a presidential election. So will the U.S. ever see a third-party president? WATCH Follow Discovery News on Facebook! Get your sci-tech headlines all day on Twitter too! At Discovery Communications, we value your privacy. If you would like to be removed from future communications like this, please click here. Privacy Policy Discovery Communications, LLC One Discovery Place Silver Spring, MD 20910 © Copyright 2016 Discovery Communications, LLC