Natural selection is a theory that suggests that some genetic traits will be more common than others in a given environment in which organisms live. Natural selection is a slow and gradual process which will happen over generations of the species. Traits become less or more common depending on environmental circumstances, in other words, selection pressure. For example, if the selective pressure is the availability of food, animals that can get to food faster thanks to their strong muscles will have their more or less common traits. more common than animals that have weaker muscles. This is because food allows animals with stronger muscles to survive, which in turn does not make much surplus food available for animals with weaker muscles to survive. So let's make the stronger trait more common than the less strong one. The simulator does something similar to this. The organisms are identical at the beginning. They have similar length arms as a result of their phenotypes. To simulate nature, each cycle we could say represents a generation. Every generation we see new organisms born with random mutations. Based on the environment we see different mutations on the newborn. For example, if his environment through generations allowed his ancestors to survive, based on the phenotypes we saw in the ancestors we can see them again in the newborn. Basically saying that the newborn's parents lived long enough to mate with the same traits, in turn giving the newborn those exact same traits. In this case, they are the strokes that code for the length of the arms. This is because the theory suggested that traits would be more common across generations if the environment had not made them less common. In other w...... middle of paper ...... loop. So, anything < C 160. The orange line is pretty strong, kill more species with short weapons than species with long weapons. You can see that this result matches the graph. The orange line stays above the red and blue line until C 160. The green line is the strongest, kill all short armed species. You can observe this on the graph because of the dramatic increase at the beginning until cycle 50. The line then stays above all lines until C 160. So why do we get erratic results at C 160? There could be two reasons. 1. We get these erratic results because of food availability. When many long arms grab food, there will be less food left for other long-armed creatures.2. We get these erratic results because this program does not take into account all the factors that give us selection strength. Giving us irregular activity at C160.