These are excerpts and elaborations from my book "The Nature of Consciousness"
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The US evolutionary psychologist Geoffrey Miller believes that the human mind was largely molded by sexual selection and is therefore mainly a sexual ornament. Culture, in general, and language, in particular, are simply ways for males and females to play the game of sex. When language appeared, it quickly became a key tool in sexual selection, and therefore it evolved quickly. Darwin had already speculated that
language may have evolved through sexual selection(as a means to impress sexual
mates). Miller agrees, finding that the usual explanation (that language helps a
group trade key information) is only a small piece of the puzzle (individuals,
unless they are relatives, have no motivation to share key information since
they are supposed to compete). Even more powerful is the
evidence that comes from observing the behavior of today's humans: they compete
to be heard, they compete to utter the most sensational sentences, they are
dying to talk. Miller also mentions anatomical
evidence: what has evolved dramatically in the human brain is not the hearing
apparatus but the speaking apparatus. Miller believes that language, whose
intended or unintended effect is to deliver knowledge to competitors, must also
have a selfish function, otherwise it would not have developed: individuals who
simply delivered knowledge to competitors would not have survived. On the other
hand, if language is a form of sexual display, then it makes sense that it
evolved rapidly, just like any other organ (bull horns or peacock tails) that
served that function. It is unique to humans the same way that the peacock’s
tail is unique to peacocks. It is pointless to try and teach language to a
chimpanzee the same way that it is pointless to expect a child to grow a
colorful tail. The Origin of Communication Where does language come
from is a question that does not only apply to humans, but to all species, each
species having its own "language". One might as well ask the
question, "Where do bee dances come from"? The bees are extremely
good at providing details about the route and the location of food. They do so
not with words but by dancing. The origins of bee dances are no less intriguing
than the origins of human language. The point is that most
species develop a social life and the social life depends on a mechanism of
communication, and in humans that mechanism is language. But language may be
viewed as a particular case of a more general process of nature, the process by
which several individuals become aggregated in a group. There is a bond within the
members of a species, regardless of whether they are cooperating or competing:
they can communicate. A dog cannot communicate much to a cat. A lion cannot
communicate with an ant. And the greatest expert in bees cannot communicate
much with a bee. Communication between members of different species is close to
impossible. But communication within members of a species is simple, immediate,
natural, and, contrary to our beliefs, does not require any advanced skills.
All birds communicate; all bees communicate. There is no reason to believe that
humans would not communicate if they were not taught a specific language. They
might, in fact, communicate better: hand gestures and facial expressions may be
a more efficient means of communication among humans than words. Again, this efficiency is
independent of the motives: whether it is for cooperation or for aggression. We
can communicate with other members of our species. When we communicate for
cooperation, the communication can become very complex and sophisticated. We
may communicate that a herd is moving east, that clouds are bringing rain, that
the plains are flooded. A bee can communicate similar information to another
bee. But an ant cannot communicate this kind of information to a fish and a
fish cannot communicate it to a bird. Each species has developed a
species-specific form of communication. The origin of language is
but a detail in a much more complex story, the story of how intra-species
communication evolved. If all species come from a common ancestor, there must
have been only one form of communication at the beginning. Among the many
traits that evolved over the ages, intra-species communication is one that took
the wildest turns. While the genetic repertoire of bees and flies may be very
similar, their system of communication is quite different. The fact that communication
is different for each species may simply be due to the fact that each species
has different kinds of senses, and communication has to be tailored to the
available senses. A reason for this social
trait to exist could be both sexual reproduction and altruism. Back to the beginning of the chapter "The History of Language: Why We Speak" | Back to the index of all chapters |
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