Nearly 95% of the biologists in the National Academy of Sciences describe themselves as atheists or agnostics, a far higher percentage than in any other scientific discipline. [Where Darwin Meets the Bible (2002), pp. 271-273]
Similarly, according to a 2003 Cornell survey of leading scientists in the field of evolution, 87% deny existence of God, 88% disbelieve in life after death, and 90% reject idea that evolution directed toward “ultimate purpose.” [Cornell Evolution Project Survey]
Compare this to the percentage of Nobel Laureates in science who are Christians or Jews - about 85% of the total, with atheists an extremely small percentage.