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Wild birds rewrite rules of flight efficiency: Study reveals power of 'free fuel' from the sky

An international study has overturned a longstanding textbook view of how much energy animals use to travel, revealing that flying can sometimes be cheaper than swimming.

Phys.org ScienceOctober 15, 20261 min read
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Wild birds rewrite rules of flight efficiency: Study reveals power of 'free fuel' from the sky

An international study has overturned a longstanding textbook view of how much energy animals use to travel, revealing that flying can sometimes be cheaper than swimming.

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