It is an animal because he wants an animal to hunt so he wouldnt be looking for a mine and a shape
Answer:
I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.
Life and 98% of what you learn is a waste