Description: What can we learn by studying poop? Poop can tell us the health secrets in our body: If the poop is sausage-shaped, it means that the intestines are healthy; if there is a lot of yellow and green eye mucus, it may be conjunctivitis. Poop can also tell us the survival wisdom of animals: birds will pull you a poop to reduce weight so that you can fly; elephants feed their babies with poop because poop is easier to digest. Poop can even be used for medical treatment, archaeology, papermaking, painting...
