The Economist -
7 Nov 2018 22:33

Lover of the light MOST SPIDERS avoid light because, besides being predators, they are also potential prey. But there is a set of circumstances in which living beside a powerful light is an advantage. This is when you are a web-weaving spider. Moths and other insects are attracted to sources of illumination such as streetlights. Those are found predominantly in cities. It would therefore make sense if urban web-spinning spiders had lost their photophobia, so that they could more easily set up sh...
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