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Źródło: Unlocking the Secrets Behind the Hummingbird's Frenzy To our eyes, they often are a blur. But high-speed cameras show us what makes these birds perfect flying machines.
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Źródło: Unlocking the Secrets Behind the Hummingbird's Frenzy To our eyes, they often are a blur. But high-speed cameras show us what makes these birds perfect flying machines.
bioslawek z