Mayflies Stage Comeback in Central Scotland

Scientists are guessing that the decline in heavy industry in Scotland, combined with global warming, is leading to an increase in the number of mayflies on Scottish waters. “Ephemera danica emerges when the mayflower, or hawthorn, is in bloom. Meanwhile, the Highlands could emerge as a stronghold for another riverfly, ameletus inopinatus, as it is pushed further north by global warming.” Story from the BBC.