are butterflies ‘solar-powered’?

You might recall as a child, or even now, that’s if you still see butterflies around, most of the butterflies you might’ve seen were bright-coloured, usually yellow. Happy to fly relatively short distances.
That’s because the darker their wings, the better they are able to fly, especially of Monarch butterflies, according to a new study.

The little differences in colour between butterflies have big biological significance, warning predators of their bitter taste and toxicity and even distinguishing between migratory and non-migratory butterflies, which suggests an association between darker colour and increased ability to fly for longer.
So are they solar powered? Or maybe the darker colour does something else to them that gives them that ability. My usual ramblings…


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