According to the context, gray squirrels gradually replaced the red squirrels due to a process of adaptation of these to the environment in which they are immersed, this is an example of natural selection.
It is the process of adaptation to the environment by which only organisms with certain characteristics reproduce.
Thus, natural selection is the process that favors the organisms best adapted to deal with their environment, allowing them to reproduce and transmit their characteristics to future generations.
Therefore, we can conclude that according to the context, gray squirrels gradually replaced the red squirrels due to a process of adaptation of these to the environment in which they are immersed, this is an example of natural selection.
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