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.

2026年1月19日 · 杨勇 · 来源：tutorial新闻网

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Farmers and conservationists alike told me they need to see clear plans for what policymakers want from the uplands for the next generation. Their hope is that, as we move into the second quarter of the 21st Century, traditional sheep farmers and rewilders alike find their place in the nation's cherished uplands.