AppearanceSignature spiders get their name from the zigzag design embossed on the web, the stabilimentum, that is believed to serve a camouflage function. They show extreme sexual dimorphism and males are only 10% of the female in size and as a result become victims of sexual cannibalism. If the males survive the first copulation, then they almost always die during the second attempt. However, further studies have shown that male invariably dies after second copulation as a form of programmed suicide.
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