That dogs are man's best friend is news as old as the Earth. But did you know that guys are three times more likely to get a girl's phone number if they have a dog with them? Have you ever gotten the feeling that your dog just understands you? Something that cannot be said for many people around you. Did you know that when a dog hears a cry or a laugh, his brain's reaction is similar to yours? Did you know that they curl up in a ball while they sleep to maintain their body temperature and protect the most vulnerable parts of their body from predators? You can find out everything else you need to know about the dog in the article.