Like a human's brain, a dog's brain responds to the meaning of a word and how the word is said. And like with a human's brain, the dog's left hemisphere reacts to meaning and the right hemisphere reacts to intonation. In the study, words were said to dogs in positive and neutral tones, but only positive words spoken in a positive tone prompted strong activity in the brain's reward center. This study suggested that non-primates could process meaning and emotion long before humans could talk.

This article highlighted some of the averted words in the english language, like "slacks" or "gasp." The study showed that most of the averted words were related to body parts and bodily functions. Other averted words bothered people for no reason. For example, "ointment" and "unguent" were recorded in the study.

This article talks about a face all humans make, the "not face." It combines the 3 emotions of anger, disgust, and contempt. It not only shows that we are able to express complex emotions, but also how the "not face" is closely tied to language. In ASL speakers, the sign for "not" is also replaced with the negative expression. This article also highlights how facial expression affects language and that there could be more facial expressions like grammatical markers.

This article highlights the different sounds animals make in different languages. Why can't animal sounds be something that is universal? As of right now there is no formal research done on this topic, but one possibility could be cultural influences on animal sounds, or that people interpret a sound based on their country's phonetic alphabet.