Invasive species don’t have to be ugly to do big-time damage to native creatures and environments. Since rainbow trout were introduced to Michigan, the iconic slate-blue Arctic Grayling’s been on the outs. Native only to Michigan and Montana, grayling numbers dwindled in the face of this unfair competition along with habitat destruction and over-fishing. Three decades ago, the most recent effort to reintroduce the species failed. Lessons learned, the state’s Department of Natural Resource is drafting a plan in partnership with the Little River Band of Ottawa Indians. Montana’s success has been key in pulling together this collaborative effort.