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Gene editing is transforming medical research and could deliver new treatments and cures for diseases. It also gives scientists control over evolution, allowing genetic changes to be forced through species. 基因编辑正在改变医学研究,并可能提供新的治疗和治疗疾病。它还赋予科学家对进化的控制权,允许通过物种强制进行基因改变。
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Meet the Penguins In this one-off special, bird expert and enthusiast Adrian Walls fulfils a lifelong dream to see an endangered species of penguin in the wilds of Peru. Adrian, head of birds at ZSL London Zoo, has looked after penguins throughout his twenty-five years as a zookeeper, but he’s never seen them in their natural environment on the breath-taking Pacific coast of Pe...
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