This is an interesting topic really, I think on animal planet they showed certain apes laughing, they laugh but crying I do not know, they have sadness and happiness but they only seem to express happiness, when sad they just kind of mope around and keep their heads low.
I understand exactly what you feel when you cried watching another man cry on tv, that happens to me all the time.
Once I saw a toilet paper commercial, with those cute puppies, the puppies were so cute I just teared up and smiled, thats a different emotion then crying though. But in my case I cry alot watching tv, or even some videogames pull me in and I cry. Same with laughter.