The reason science and religion are often seen as rivals is because establishment science and religion some times have conflicts. The fact is that the Scientific Establishment refuses to allow any consideration of God or the supernatural. They seem to be determined that it is to be science vs religion rather than Science and religion. However when that are allowed to do so science and religion can compliment each other. That fact is that religion can inspire scientific research and science can help the understanding of religion.
Creation Science stands as a good example os this concept in action. Starting with the Bible has produced successfully tested predictions and science has provided useful insight into a number of Biblical passages.