The terrible thing

The color of the pictures are just black and white, I think it's the way how the author expressed the main idea of the book, the colors mention how serious problem is.But,anyway,it's a child book , so the animals made the problem more fun.It's really a special book!And the picture and the words didn't say corretly what's the terribe thing is, but we already know,do we?It's human ourselves ,we are so greedy that we don't care our behavior may hurt others.This is really worth us to think about.