My PhD was awarded by the Australian National University in 2020. In it, I argue that teleosemantics is more closely related to the science of communication than is usually assumed. The result is a common framework for many kinds of signals -- biological, technological and linguistic. By placing a philosophical theory of meaning on a scientific footing we see that meaning is much more widespread than folk psychological states and linguistic utterances. Traditional work locating "original intentionality" in the head is confused. And contemporary claims that "information has nothing to do with meaning" are fallacious.