The Importance of Science

When considering the "nature of human nature," should science be an important factor?  Darwin takes evolution strongly into consideration when creating his theory of human nature.  The human body, is itself, an important factor and the human body is science.  I believe that under that simple connection, that science does deserve strong consideration in the evaluation of human nature.  Science explains how our brains work, how our hormones effect our actions, how our genes play a role in our life.  I believe religious theories of  human nature fail to take into consideration these crucial scientific factors and therefore are missing key points in their analyses