Evolution is broken down into three different main categories. The first is microevolution. Microevolution is the change within a species over time. Microevolution is not controversial. It is the basic idea that a species has variety.
Macroevolution is controversial.
The last is the philosophy of evolution. This, like all other philosophies, is controversial. The philosophy of evolution states that everything is progressing toward a future perfection. Creation is the counterpart to evolution. Creation states that a higher being designed and built the universe.