Alone in the world is this little CatDog, at least for now. I love Nickelodeon's classic cartoons, but I've always wanted to figure out one thing: What is a "catdog?" Better yet, can a "catdog" really ...

After four years of daily viewing, Barbara still requests her daily hour with the iconic investigator to feel content. Watch ...

If anyone knows what’s in a dog or cat’s mouth, it’s Floyd Dewhirst, a bacterial geneticist at the Forsyth Institute and professor of oral medicine at Harvard. Dewhirst pioneered the study ...