Pigs eat grass if they are very hungry, but they can't use it as a regular source of food.
Marvin HarrisEvery theory presented as a scientific concept is just that; it's a theory that tries to explain more about the world than previous theories have done. It is open to being challenged and to being proven incorrect.
Marvin HarrisHere you do have forests, where pigs could be raised by letting them root about in the forests for a good part of the year. Therefore, you have a different attitude toward them compared with what continues to exist in the Middle East.
Marvin Harris