A scientist is observing rats in the wild. As the rats reproduce, rats born with white fur slowly begin to outnumber rats with black fur. In three to five sentences, provide two or more different explanations of why the rats with white fur might be outnumbering the rats with black fur.
1 answer
One possible explanation is that the environment where the rats are living is changing, and the white fur provides better camouflage, increasing the survival rate of the white-furred rats. Another explanation could be that there is a genetic advantage associated with white fur that is favoring the reproduction of rats with this trait. It is also possible that there is a random fluctuation in the ratio of white-furred rats to black-furred rats, leading to a temporary increase in the number of white-furred rats.