It’s a cold day, with snow falling, as a group of biologists hikes across a southern Appalachian bog. Biologist Sue Cameron has found a hole in the ground that looks promising. Standing in the mud, she rolls up her sleeve, gets down on her knees, and sticks her hand in the hole, hoping to find a bog turtle. She comes up empty handed – but this trip wasn’t intended as a turtle search and the turtle happens to be one of the rarest in the United States.