In a mouse population, some mice have thicker fur than others, but there are more mice with thinner fur. The climate in which these mice love has slowly gotten colder.
How will this change in the environment most likely affect the mouse population?
A lot of the mice with thinner fur will probably die off because it’s too cold for them. Then only the toughest thin fur mice and the thick fur mice will live and their babies will have thick fur. Then most mice will have thick fur over a long period of time of course.
