Since I became a stay-at-home mom, my exposure to daytime tv has really increased, for better or for worse. One advantage is seeing some real cute youtube clips over and over again. Many websites have this clip, but I found it first at http://well.blogs.nytimes.com/2011/03/31/toddler-twins-secret-language-or-babble/. Do these twins have a secret language or just babble? Check out the article by Tara Parker-Pope.