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Sociable spiders 社会性蜘蛛 Come into my parlour 欢迎来做客 A strange example of co-operative behaviour inarachnids 一种懂得合作的不寻常的蜘蛛 SPIDERS are known for many things. 蜘蛛为人熟知的特点很多， Sociability is not one of them. 但社会性不在其列。 Most spiders are more likely to try to eat their neighbours than befriend them. 多数蜘蛛更有可能想吃掉自己的邻居，而非跟它们做朋友。 Given that there are at least 43,678 species of the critters, though, it is not too surprisingthat a few have overcome their natural grumpiness and teamed up to form societies. 不过考虑到这种生物至少有43678种，有那么几种能克服天生乖戾的性情结群而居也就不足为奇了。 So far, about two dozen such social spiders have been identified. 目前已知的社会性蜘蛛约有24种。 And among them, something really strange has just been found. 其中还发现了一些奇特之处。 For one type of spider society turnsout to involve two different but closely related species. | 
