Why do fireflies light up? And how can I bring more fireflies to my yard?

For many of us, seeing fireflies light up the night is one of the more pleasant signs that summer has arrived. But what’s behind their sparkling flights? And what can we do to bring more of these living nightlights to our yards? For many of us, seeing fireflies light up the night is one of the more pleasant signs that summer has arrived. But what’s behind their sparkling flights? And what can we do to bring more of these living nightlights to our yards? Ecology Phys.org – latest science and technology news stories