Darwinandevelution5

This is most likely because it is only a theory and there is very little proof that the theory is correct. The greatest controversy stems from religious text explaining that we were created in a very short period of time compared to evolution which takes millennia. Another cause for controversy is the desire for most people to believe that we have been created (by God for example) to be what/who we are. The implication of evolution is that humans can be better that what we are, and also that our ancestors are weaker than what we are. To draw a parallel of a scientific theory - At the time when we realised that Earth was revolving around the Sun, religious leaders understood this to mean that Earth was not the centre of the universe. After a lot of controversy and arguing between the religious leaders and scientists, the evidence was presented to prove the theory, and there was no longer a dispute.Unfortunately with Evolution, the theory requires a large number of years - generations of people must participate in managing a controlled experiment - in order to prove or disprove the theory.