Evolutionary biologists are not content merely to explain how variation occurs within limits, however. They aspire to answer a much broader question-which is how complex organisms like birds, and flowers, and human beings came into existence in the first place.

It's falsified by all of the evidence and the logic is terrible. He became a born-again Christian while a tenured professor and is considered the father of the intelligent design movement. Johnson (born June 18 1940) is a retired UC Berkeley law professor and author.

A critic of what he calls "Darwinism" and "scientific materialism" Johnson rejects evolution in favor of neocreationist views known as intelligent design. He was a co-founder of the Discovery Institute's Center for Science and Culture (CSC) and is credited with establishing the wedge Strategy which aims to change public opinion and scientific consensus and seeks to convince the scientific community to allow a role for God in scientific theory. As a member of the group for the Scientific Reappraisal of the HIV-AIDS Hypothesis a prominent AIDS denialist group Johnson has written that HIV does not cause AIDS.