大肚鱼

Populations of frogs, salamanders and other amphibians are declining around the worldeven in protected areas, like U.S. national parks. Ecologists needed a simple method to track the animals numbers. Now, researchers have found an effective way to ke

发表于:2019-02-14 / 阅读(100) / 评论(0) 分类 2018年科学美国人1月

For Minnows, A Suicidal Survival Strategy 北美多种小型鱼类,特别是鲤科(Cyprinidae)鱼类的总称。亦指荫鱼科(Umbridae)和鱂科(Cyprinodontidae)鱼类,minnow一词又泛指许多大型鱼类的幼鱼。北美的鲤科米诺鱼包

发表于:2019-03-09 / 阅读(179) / 评论(0) 分类 英语听力文摘 English Digest
学英语单词
abite
absolute quarantine
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data description separated from executable statement
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Ehretia hainanensis
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helminthes
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your cup of tea