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Biology

Members of this family of spiders are active hunters with good vision (3). The nursery-web spider hunts amongst low vegetation as well as on the ground. When detecting prey, they characteristically rest on vegetation with the first two pairs of legs together, held out at an angle (3). During courtship, males present females with a 'nuptial gift' in the form of an insect wrapped in silk (3). Until fairly recently, this gift was thought to protect the male from becoming the female's next meal. Research has shown, however, that the gift entices the female to mate, and what's more, the size of the gift is related to how long the female will mate with a male. The larger the gift, the longer copulation will last and so more eggs will be fertilised by more 'generous' males bringing larger gifts (4). Female spiders belonging to this family produce very large egg sacs, which they carry around beneath their body. When the time for the spiderlings to emerge approaches, the female deposits the egg sac on a leaf and spins a protective silk 'nursery web' around it. She then opens the egg sac slightly, and stands guard until the spiderlings emerge (3).

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Source: ARKive

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