Dying stars and illuminated gas create this stunning nebula.
They contain “wing hearts” that pump blood and regulate temperatures.
They could help explain an iconic butterfly’s evolution.
Warmer winters could have a surprising impact.
The tropical insects' gliders are a warning signal to predators.
Understanding where the insects travel will help biologists better track their overall population levels.
They found some nanoscale clues on the hues.
Insect populations are on the decline.
Shine bright like a butterfly
It’s harder than you’d think to define
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