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。
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