Ran Hao & Illustrated by Zhang Lijie 
Stinky Science 

Pandas like to pee upside down. Rabbits eat their poo and digest it again. Sloths pee under trees once a week. There is a golden rule of 21 seconds in the animal kingdom. Hippos decide which one is the strongest in the population by throwing poop … This book tells the interesting knowledge of more than ten kinds of animals’ poop from the perspective of scientists’ grandfathers and grandsons. There are hidden scientific laws and survival rules behind the interesting and fun phenomena.