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英语全文帮忙翻译下,谢谢!
Whale Ear Wax Reveals Environmental Pollutants
Some whales build up waxes, lipids and keratin into earplugs that tell researchers about a whale's lifetime exposure to pollution. Cynthia Graber reports
Cerumen. It’s a lovely word. Especially considering that it means earwax. And we’re not the only species that produces the stuff. Some whales build up waxes, along with lipids and keratin protein into what’s called earplugs. And researchers now know that examining these plugs tells them about a whale’s lifetime exposure to pollution.
Alternating layers of dark and light in the plugs correlate to seasons of feeding or migration. So the plugs have been used to determine a whale’s age. Think tree rings.
In the latest study, scientists analyzed an earplug from an endangered blue whale killed by a ship near California. They found that levels of stress hormones doubled over the whale’s life.
They also found evidence that the whale had been exposed to pesticides such as DDT, with the highest levels during the whale’s first six months of life. The whale was likely exposed to the pesticides in its mother’s milk.
They also found a couple of peaks of exposure to mercury. The study is in the Proceedings of the National Academy of Sciences. [Stephen J. Trumble et al., Blue whale earplug reveals lifetime contaminant exposure and hormone profiles]
Future earplugs should offer additional clues about whale lives. So look for researchers to give new attention to leviathan cerumen.
Whale Ear Wax Reveals Environmental Pollutants
Some whales build up waxes, lipids and keratin into earplugs that tell researchers about a whale's lifetime exposure to pollution. Cynthia Graber reports
Cerumen. It’s a lovely word. Especially considering that it means earwax. And we’re not the only species that produces the stuff. Some whales build up waxes, along with lipids and keratin protein into what’s called earplugs. And researchers now know that examining these plugs tells them about a whale’s lifetime exposure to pollution.
Alternating layers of dark and light in the plugs correlate to seasons of feeding or migration. So the plugs have been used to determine a whale’s age. Think tree rings.
In the latest study, scientists analyzed an earplug from an endangered blue whale killed by a ship near California. They found that levels of stress hormones doubled over the whale’s life.
They also found evidence that the whale had been exposed to pesticides such as DDT, with the highest levels during the whale’s first six months of life. The whale was likely exposed to the pesticides in its mother’s milk.
They also found a couple of peaks of exposure to mercury. The study is in the Proceedings of the National Academy of Sciences. [Stephen J. Trumble et al., Blue whale earplug reveals lifetime contaminant exposure and hormone profiles]
Future earplugs should offer additional clues about whale lives. So look for researchers to give new attention to leviathan cerumen.
Whale Ear Wax Reveals Environmental Pollutants
鲸鱼耳垢揭示环境污染物
Some whales build up waxes,lipids and keratin into earplugs that tell researchers about a whale's lifetime exposure to pollution.
一些鲸鱼建立蜡、油脂和角质到耳塞,告诉研究人员关于鲸鱼的一生暴露于污染.
Cynthia Graber reports
辛西娅·格鲁伯报告.
Cerumen.
耵聍.
It’s a lovely word.
这是一个可爱的词.
Especially considering that it means earwax.
特别是考虑到这意味着耳垢.
And we’re not the only species that produces the stuff.
和我们不是唯一的物种产生的东西.
Some whales build up waxes,along with lipids and keratin protein into what’s called earplugs.
一些鲸鱼建立蜡,以及脂类和蛋白角成所谓的耳塞.
And researchers now know that examining these plugs tells them about a whale’s lifetime exposure to pollution.
和研究人员现在知道检查这些插头告诉他们
仅供参考,希望能给你一些帮助!
鲸鱼耳垢揭示环境污染物
Some whales build up waxes,lipids and keratin into earplugs that tell researchers about a whale's lifetime exposure to pollution.
一些鲸鱼建立蜡、油脂和角质到耳塞,告诉研究人员关于鲸鱼的一生暴露于污染.
Cynthia Graber reports
辛西娅·格鲁伯报告.
Cerumen.
耵聍.
It’s a lovely word.
这是一个可爱的词.
Especially considering that it means earwax.
特别是考虑到这意味着耳垢.
And we’re not the only species that produces the stuff.
和我们不是唯一的物种产生的东西.
Some whales build up waxes,along with lipids and keratin protein into what’s called earplugs.
一些鲸鱼建立蜡,以及脂类和蛋白角成所谓的耳塞.
And researchers now know that examining these plugs tells them about a whale’s lifetime exposure to pollution.
和研究人员现在知道检查这些插头告诉他们
仅供参考,希望能给你一些帮助!