In 1906, there was a small population of deer on the Kaibab Plateau. Because cows had overgrazed the food on the Kaibab Plateau, the Forest Service decided to create a preserve on the Kaibab Plateau for the deer. In the preserve, the cows and the natural predators of the deer were removed. In 1920, the Forest Service discovered that the number of deer in the preserve was very large. By 1923, most of the deer were starving from a lack of food. Which statement best describes what happened on the Kaibab Plateau between 1906 and 1923? Overgrazing by cows caused the deer on the Kaibab Plateau to starve. The large growth and starvation of the deer population was an event of natural selection. With no natural predators to regulate the population, the deer population continued to grow. The growth of the deer population was slower than the growth of the food supply on the Plateau, causing starvation.