Problem: A population of hares live in northern Canada. Most of the hares in this population have white fur, while a few have some brown coloring in their fur.
Over a 100-year period the climate warms, resulting in much less snow and ice in the ecosystem where the hares live. The majority of hares in this population now have brown coloring in their fur, while only a few are completely white.
Explain how the hare population evolved through the process of natural selection. What is the beneficial trait at the end of the 100-year period? How was differential survival and reproduction involved?