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(单词翻译:双击或拖选)
This is Scientific Americans' Sixty-Second Science, I'm Christopher Intagliata, got a minute?
Vampire1 spiders, as the name suggests, like blood. And they feast on blood-filled mosquitoes to get it. But only female mosquitoes suck blood. So how do spiders hole in on the ladies?
To find out, researchers, well, took apart a bunch of mosquitoes. Then they mixed and matched body parts. They glued female heads onto male abdomens and male heads onto female bodies, some of which had blood-filled bellies2. Then they let the spiders loose near these reassembled specimens3, and watched to see which ones the spiders stalked.
As the researchers predicted, the spiders paid close attention to the abdomen, pouncing4 on the Frankensquitos filled with blood. But the spiders also kept an eye ,or eight eyes, on the mosquitoes' heads. Males have lush, feathery *. The females aren't as so. So if the spiders couldn't see the belly5 they went for female-headed mosquitoes, presumably for the better odds6 of scoring blood. The researchs in the Journal of Experimental Biology.
Previous studies have shown that blood meals give vampire spiders a perfume that's irresistible7 to the opposite sex. Now that's what I call bloodlust.
Thanks for the minute, for Scientific Americans' Sixty-Second Science, I'm Christopher Intagliata.
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1 vampire | |
n.吸血鬼 | |
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2 bellies | |
n.肚子( belly的名词复数 );腹部;(物体的)圆形或凸起部份;腹部…形的 | |
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3 specimens | |
n.样品( specimen的名词复数 );范例;(化验的)抽样;某种类型的人 | |
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4 pouncing | |
v.突然袭击( pounce的现在分词 );猛扑;一眼看出;抓住机会(进行抨击) | |
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5 belly | |
n.肚子,腹部;(像肚子一样)鼓起的部分,膛 | |
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6 odds | |
n.让步,机率,可能性,比率;胜败优劣之别 | |
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7 irresistible | |
adj.非常诱人的,无法拒绝的,无法抗拒的 | |
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