No. They may have been something that drove change but not natural selection. The invention of scientific thought has produced more change. Dr. Snow tracked down the cause of cholera outbreaks in London and forced sewer systems to be put into cities.
Even though small pox (a virus) may have killed as many as 300-500 million people, it no long exists except as "saved" samples and could be used as a bioterrorist weapon.
These are examples of scientific advances.
Darwin's contribution was the theory of natural selection that explained the mechanism behind evolution.
malonocytes
The pairing mechanism behind high-temperature superconductivity is the ability of certain materials to conduct electricity with zero electrical resistance.
the transfer case
The primary driving force behind evolution is the environmental pressure, which encourages or discourages certain physical or behavioural adaptations to best fit the environment.
Although the exact cause of ADHD is not known, an imbalance of certain neurotransmitters, the chemicals in the brain that transmit messages between nerve cells, is believed to be the mechanism behind ADHD symptoms
When you ask questions about the motive behind a primary document, you're wondering why the document was created.
Yes.
Because Europe is behind America in the evolution of language.
behind the drivers side seat belt mechanism :P
reduce costs.
Up near the steering wheel mechanism behind the dash.