Religious belief in the circles of prominent scientists is in the low single digit percentages (unless you get your stats from 'University' of Liberty or the Templeton Organization - I'm sure they have a more imaginative take). One of the very few high profile biologists whom is also religious is Collin Francis (director of the human genome project). Collin Francis is considered an oddity among scientists... Your comment of "a lot of scientists" is inaccurate. Few scientists? Sure. A lot? A definite no.
Organised religion and science cannot coexist as long as organised religion makes claims about how the world got here, and how everyone should live their lives. Unlike in the bible, in real life you cannot have two creation stories (Genesis Chapter 1 and Chapter 2 claim that man was created on different days, but you know that already
). Either we came from a sadomasochistic God whom wants us to worship him, remain abstinent until married, let the people of Africa die from AIDS sooner than provide them condoms, or, we evolved and need not worry about such an awful character being at the helm.
Religion as in personal spirituality, ah, there my friend we can agree that religion and science can coexist. These days, on an organisational level Christianity is more about politics than being spirituality, and that's why the backlash against religion from the likes of Dawkins, Harris, Dannet, Hitchins, and the Rational Response Squad (RRS).