"It is a dangerous mutation that increases the risk to the organizm...."

Evolution is not really about the danger to individual organisms. That is to say, there are no dangerous mutations. Nonviable perhaps, but not dangerous. Evolution is more about survival of the population. The more diverse a population, the less risk of being totally wiped out due to selective environmental conditions. What would be dangerous is to have no mutations. Some would argue that allowances for mutations to occur in biological systems is pretty clever.

Last edited by carbon12; 11/18/09. Reason: grammar