The emergence of this bio-diversity among goats has
been incidental rather than deliberate. It is the consequence
of human migrations and where humans have
settled, of local requirements for the animals to survive the
rigours of the environment that could range from desert
to tropical, or from lowland to highlands. In the process of
adapting to the environment, goats expressed specific morphological
and physiological traits that could be exploited
by humans and be incorporated into their own endeavours