Final answer:
Human communication is distinguished from animal communication by the complexity and flexibility of language, including an infinite combination of words and the capability to express a wide range of ideas and emotions. Animal communication systems typically have more limited scopes, with specific rules that are context-dependent.
Step-by-step explanation:
Differences Between Human and Animal Communication Systems
Human communication differs from animal communication in several profound ways. One of the key differences is the use and complexity of language. Human language is highly complex and defined by its flexibility and open-ended structure. This allows an infinite combination of words to express a vast array of meanings, ideas, and emotions. While animals do communicate via sounds, movements, and signals, their systems are generally considered to be more limited or 'closed'. They may be complex and rule-based, like the waggle dance of bees, but these are specialized and not capable of expressing the wide range of topics that human language can.
Human communication is further characterized by its use of facial expressions and gestures, adding layers of meaning and nuance to the spoken word. Moreover, cultural development has entwined with language, creating a diversity in communication styles across human societies. Conversely, while some animals may be able to learn human words or signs in controlled environments, their abilities do not demonstrate the full complexity or intent behind human language.
In summary, the key factors that distinguish human communication from animal communication include the complexity of language, the open-ended and systematic rules governing language, and the connections between language, culture, and thought.