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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Названа исполнительница роли Наташи Ростовой в «Войне и мире» Андреасяна14:45

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Vivo's X30。业内人士推荐体育直播作为进阶阅读

It is not a can, but an optical illusion – a trick of perspective. Can you work out what is going on?

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