evolution is theory;
So is gravity.

And evolution is a proven fact. Why do you think so much money is put into finding new drugs to fight bacteria. They evolve. One years flu strain is not the same as the next years.

"According to a study by Paul Bell, published in the UK Mensa Magazine in 2002, there is an inverse correlation between religiosity and intelligence. A letter published in Nature in 1998 reported a survey suggesting that belief in a personal God or afterlife was at an all time low among the members of the National Academy of Science, only 7.0% of which believed in a personal God as compared to more than 85% of the US general population.[73]"

-from wikipedia