There are several different about a forest and a desert. First difference is the whether forest has a lot of trees, but desert has a few of trees. The forest is plentiful and more animal. Desert is dry and harder to survive. Animal in the forest are variety, ecology in the forest is suitable to living. The types of animals that live in forest are so many variety, because there are so many shelter, shade, water and foods. For this reason, there is an advantage to living in the forest. Desert climate, the temperature difference between day and night is very different for the area in the desert where there is water and trees have called Oasis, but the forest was known as a fertile oasis with plenty of water. All the reasons above, it was concluded that the forest ecological system more complete than the desert.