Why do people still believe in evolution?

I suspect you are looking at it wrong. I only say this because in every other part of science when something is learned to be not as we thought, the new evidence is added and we move on with the updated information that is more accurate. Since scientist still use the theory of evolution as it is, it must still be accurate. You just think it is wrong because you believe it contradicts with your bible. Even if scientist were to discover tomorrow some break through that disproved the theory of evolution, they will not come up with the "God did it theory" that is unscientific and it still doesn't make the existence of God or the bible any more true.