Scientists have finally worked out how butterflies fly – CNN Philippines

(CNN)  Scientists have long wondered how butterflies fly compared with other flying animals, the creatures have unusually short, broad and large wings relative to their body size.
Now, experts have found that the insects “clap” their wings together  and their wings are perfectly evolved for better propulsion.
Biologists from Sweden’s Lund University set out to test a 50-year-old theory, that butterflies “clap” their wings together, pushing out the trapped air to create a jet and push the animal…

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