*Explain the trend of increases and/or decreases for both the rabbit and wolf populations between the years 1930-1950.  When the wolf population goes up, it starts eating the rabbit population, but then the rabbit population goes into hiding and the wolves have nothing to eat. So then their population starts going down. So the rabbits attack the wolves and then the rabbit population starts going up.

*Look at the years 1987 and 1993. Explain your thinking as to why there is such a large difference in population numbers between those five years. Because that is wolves population starts going down and rabbits population starts going up.