The term evolution is generally understood to mean the process by which the present world came about.
Many different theories come under the heading of evolution.
These attempt to show a process by which things originate from simpler forms and develop into more complex ones. We will look at some of these theories and the Catholic position on them. The controversy surrounding evolution touches on our most central beliefs about ourselves and the world. Evolutionary theories have been used to answer questions about the origins of the universe, life, and man. These may be referred to as cosmic evolution, biological evolution, and human evolution.