Answer :

people from the beginning of people.
AL2006
One opinion says that hunting was invented by the people who lived
back at the beginning of people.  I think it goes back even farther than
that.

Every living thing that can move around goes hunting for things to eat,
and there were a huge number of living things that could move around, 
long before people came along.  Like dinosaurs, bats, cockroaches etc.

So I don't think you can say that hunting was ever invented.  It was just
something that living things just naturally always did, like breathing.