Let’s look at how natural selection causes advantageous traits to become more common in populations. Suppose there is a population of bugs in which some individuals are green and some individuals are...

Let’s look at how natural selection causes advantageous traits to become more common in populations. Suppose there is a population of bugs in which some individuals are green and some individuals are brown. Suppose that, because brown bugs are better camouflaged against predators, each brown bug leaves two brown offspring per generation (on average) and each green bug leaves one green offspring per generation (on average). (Is this natural selection? Why?) You start with two brown bugs and two green bugs in generation 1. How many brown and green bugs are there in generation 2? Calculate the number of brown and green bugs there are in generations 1 to 10. Show that
, of the bugs in generation 1 are brown,
, in generation 5 are brown, and more than
 in generation 10 are brown. What is happening?