Black widow spiders also use their webs to ensnare their prey.
黑寡妇蜘蛛也用它们的网诱捕猎物。
The animals most at risk from the black widow's bite are insects and male black widow spiders.
最可能遭受黑寡妇叮咬危险地动物当属昆虫以及雄性黑寡妇。
Black Widow spiders can live for 1-3 years in the wild and are often found alone.
这种沙漏型的黑蜘蛛，由于背上的红色标志易于识别，它在野外可以生存1-3年。
The animals most at risk from the black widow's bite are insects-and male black widow spiders.
最可能遭受黑寡妇叮咬危险地动物当属昆虫——还有雄性黑寡妇。
In 2 weeks, one thousand newborn black widow spiders will be unleashed on this little Virginia garden.
在2周后，一千只新生黑寡妇蜘蛛会充满弗吉尼亚州里这个小小的花园。
Male black widow spiders can sniff out a well-fed female simply by walking on her web, according to researchers.
研究人员称，雄性黑寡妇蜘蛛只需行走在雌性黑寡妇织的网上就能嗅出其是否吃饱。
Black widow spiders also use their webs to ensnare their prey, which consists of flies, mosquitoes, grasshoppers, beetles, and caterpillars.
黑寡妇蜘蛛也使用它们的网诱捕猎物，包括苍蝇、蚊子、蚱蜢、甲虫和毛虫。
Post-it maker 3m hired Sahni while he was still pursuing his PhD, studying the webs of black widow and common garden spiders, including the spider pictured above.
生产便利贴的3m公司在萨尼还在攻读博士学位时就聘用了他。当时他正在研究黑寡妇蜘蛛和普通花园蜘蛛的网，还有上图所示的这种蜘蛛。
Post-it maker 3m hired Sahni while he was still pursuing his PhD, studying the webs of black widow and common garden spiders, including the spider pictured above.
生产便利贴的3m公司在萨尼还在攻读博士学位时就聘用了他。当时他正在研究黑寡妇蜘蛛和普通花园蜘蛛的网，还有上图所示的这种蜘蛛。
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