When You Go To The Zoo In Japan Don't Feed The Monkeys.....We Think

What in the world is this sign trying to tell all of us?

It is a sign from a zoo in Japan, and the exact meaning of it seems to be alluding us.

Is it saying not to feed the monkeys?

Is it saying to feed the skinny ones but don't feed the fat ones?

Will the monkeys die from overeating?

Will the monkeys get really bad gas from human food?

What is the thing under the sick monkey's head? Is that a special monkey pillow?

If you think you know what the sign is saying, please leave your answer in the Comments section below.