On this island there are many species of birds yet a low food supply. Natural selection will cause the weaker species of birds to go extinct while the birds better at gathering food will thrive.
Because of deforestation this pack of wolves was forced to move to a high altitude and colder climate. Eventually the process of natural selection the wolves will adapt and change to be more adiquit for this climate.
Some of these rabits are much easier for hawks to hunt than others. Evolution or specifically natural selection will eventually lead to a higher amount of the more camoflagued rabits.
The small green bird was the best at gathering food so it was the one who survived.
These wolves have adapted to their new enviorment to be more suited for this new area.
The brown rabbits were much better at hiding from the hawks which is why they have a much higher population.