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Firefly season is here: When to watch for summer's flashing lights

For many people, the glow of fireflies marks the heart of summer, but the timing of those displays depends heavily on ...
The Conversation

How fireflies glow – and what signals they’re sending

You might not really be sure you saw what you think you saw when the first one shows up. But you stare in the direction of the flicker of light and there it is again – the first firefly of the evening ...