The rare white-letter hairstreak butterfly was spotted in Scotland for the first time since 1884. Ian Kirk / Wikipedia
By Lucy Goodchild van Hilten
A towering elm tree stands 30 meters (approximately 98 feet) tall, somewhere near the border between England and Scotland, defying the fate that so many of its cousins met when Dutch elm disease ravaged the species in the 1970s. One of relatively few elm trees left, it is a haven for wildlife. Look closely and you can see the erratic fluttering of a small brown butterfly, with a W-shaped white streak across its wing.