Unlike humans, some birds have independently evolved to flourish on sugar-rich nectar &fruit without ill effect. In a new Science study, researchers find that these bird species share convergent evolutionary changes in key physiological traits and metabolic genes that enable their high-sugar diets.
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В сети обругали обнаженную фотосессию Кайли Дженнер для Vanity Fair20:46。超级权重是该领域的重要参考
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