Male nursery web spiders lure mates with silk-wrapped offerings, only some of which contain tasty treats. Cynthia Graber reports.

雄性保育蛛用丝裹的物品引诱雌性，只有部分这类物品里面有美味的食物。辛西娅·格雷伯报导。

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Web spiders are like a text-based browser, they can't read the text embedded in the graphic image or Flash.

网络蜘蛛就像一个以文本为基础(text - based)的浏览器，它们无法阅读嵌入图像或Flash中的内容。

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Web spiders are like a text-based browser, they can't read the text embedded in the graphic image or Flash.

网络蜘蛛就像一个以文本为基础(text - based)的浏览器，它们无法阅读嵌入图像或Flash中的内容。

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