单词：larval molting
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With the late winter storm bearing down on Massachusetts, one group of plucky individuals in Milton, Massachusetts, got together to help out their neighbors across the road. From PBS station WGBH, Cristina Quinn has the story. What happens when the c
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Killing Mosquitoes Early On及早杀灭蚊虫预防疟疾 Targeting mosquitoes in their early stages of life has the potential to greatly boost malaria control efforts and prevent thousands of new infections every year. A new study looks at the effec
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This is Scientific American's 60-second Science. I'm Karen Hopkin. This will just take a minute. If you were a bird, how big could you be? Well, an ostrich can weigh 400 poundsbut it cant get off the ground. So what if you want to fly? University of
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Molting Molds Flying Bird Size Limit A study in the journal Public Library of Science Biology finds that it's the rate at which flying birds can replace their flight feathers that determines how big they can grow and still get off the ground. Karen
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