In the unlikely setting of the world’s most populated military installation, amid all the regimented chaos, you’ll find the Endangered Species Act at work.

There, as a 400-pound explosive resounds in the distance, a tiny St. Francis Satyr butterfly flits among the splotchy leaves, ready to lay as many as 100 eggs. At one point, this brown and frankly dull-looking butterfly could be found in only one place on Earth: Fort Bragg’s artillery range.

Read more at Associated Press News.