TTHipFreak
Coroner
I've always thought that too. Then I decided, they must have a very small translation fish that stays in their ears... ala Hitchiker's Guide. There was ST: DS9 episode when Quark, Nog and his brother ended up in Roswell, NM. They couldn't understand them because the humans did not have the translation device. So, I came to the conclusion that it could be something along those lines.