T i m wrote:
Did they evolve naturally? If they did then left in their natural
environment they would survive or not like any other creature?

Although farmed animals did indeed start by evolving naturally,
selective breeding for things like milk production (cows) and
wool growth (sheep) means that they now essentially rely on human
management - the cows *have* to be milked, the sheep *have* to
be shorn. Their "natural environment" is now on a farm, managed
by humans.

I make no comment as to whether this is good for them or not; but
it is certainly the way it is. If we stopped drinking their milk
and wearing their wool (&etc), the animals would gradually die out
as farmers made the economic choices they need to - c.f., the
fate of many breeds of draft horse.

#Paul