All animals communicate: Birds sing, insects release chemicals, monkeys produce alarm calls, honeybees dance, dolphins whistles, etc. in order to share information with the other members of their species. We, humans, use language, which is distinct and unique from all other ways of communication in that we manage to express unlimited number of thoughts using unlimited number of sentences. Our ability to express specificity in meaning and flexibility to use language in novel situations are the hallmarks of our communication. Read on