The Ch. 8 overview talked a lot about language and how it helps up learn. There are many types of language or communication, and it all affects our minds and lives. Even if we have been deprived language, we find a way to communicate. This section talked about the importance of language early on in childhood, and how kids learn. One thing I found particularly interesting, was that language learning begins by month 5 of the women's pregnancy. The child's auditory systems have developed enough where they can make out voices, and the infant has begun their learning of their own language.
Ch. 8 talks about the importance of language in human and animals. Whiles humans have a more complex communication system, animals also have to communicate. Some animals use facial expressions to express their mood, like anger. Others, like bees, use their body to communicate. Some use smells, like urine; others use sounds. The Vervet Monkey has different alarm calls for different predators. Same page goes on to talk about teaching language to animals, like chimps. While chimps don't have the vocal complexity that humans do, few have found that sign language worked, or just pointing to a picture board; turns out, most just wanted a treat.