CLARKSBURG, W.Va. (WBOY) — Almost any species of crayfish can have a mutation that occasionally makes them blue, but West Virginia has four distinct species that are almost always blue. 12 News spoke to crayfish expert and Professor and Co-chair of the Department of Biological Sciences at West Liberty University Zachary Loughman who said that there are approximately 10 crawdad species that are blue, and if you're looking to see one, West Virgini…