Ask Smithsonian | Smithsonianhttp://www.smithsonianmag.com/rss/ask-smithsonian/RSS feed for Ask SmithsonianenWed, 18 May 2016 15:00:00 +0000Why Do Humans Have Canine Teeth and More Questions From Our Readershttp://www.smithsonianmag.com/smithsonian-institution/humans-canine-teeth-questions-readers-180959074/You asked, we answeredWed, 18 May 2016 15:00:00 +0000