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科学美国人60秒 SSS 老树是生态系统的黄金使者
Old Trees Are Ecosystem Gold Well, lots of people recognize that as humans get older they tend to have less and less children...trees do it the other way around.David Lindenmayer. He studies conservation, landscape ecology and biodiversity at the Aus
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科学美国人60秒 SSS 蚊子能识别危险气味
Mosquitoes Learn the Smell of Danger When it comes to sucking blood, mosquitos can play favorites: they show preferences for particular species or even certain individuals. At the same time, their tastes can change, depending on the circumstances. On
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科学美国人60秒 SSS 海鸥把鲸鱼宝宝啄死了
Baby Whales Pecked to Death by Gulls Gulls. You may have noticed that gulls can be pretty aggressive when it comes to grabbing food. But that behavior is more intense than you may know. Some kelp gulls snack on baby whales. Live baby whales. 海鸥啊
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科学美国人60秒 SSS 火灾无声中对葡萄酒造成的影响
Wildfires Spike Wine with Smoky Notes The fires that ripped across Napa and Sonoma last year damaged some two dozen wineries, and burned others completely to the ground. 去年发生在纳帕和索马诺的大火损毁了二十多家酒厂，并将其他
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科学美国人60秒 SSS 新地图可识别噪音污染
New Map Knows Noise It's harder and harder to find peace and, especially, quiet. Just ask a field researcher deep in the wilderness. Even in the most remote parts of Alaska the sound of a jet crossing overhead is all too common. 寻求安宁越来越难
