Aspecies of birds exists in stasis for many thousands of years. suddenly, their environment changes, causing their primary tree of sheltering choice to die. to adapt to their new environment, the birds must nest in trees that are much higher, requiring more wing strength. some birds die. the remaining birds have the wing strength necessary for the new habitat and thus, return to a state of stasis. this is an example of

in the year 2850, humans successfully colonized mars. the martian modules that were constructed could hold only a small population of people. it is now a century later, and the population on mars has grown to 600 people. of the current mars population, 45 people express the recessive phenotype for phenylketon- uria (pku) syndrome (pp genotype).

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this is more of a statement than a question. is there answers to go along with this, or is it opinion based?