| 11. | The silk is harvested by milking the silk glands of golden orb web spiders.
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| 12. | However, there is no single explanation for the common use of horizontal orb webs.
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| 13. | A small spider with a shiny globular abdomen, it constructs a conical orb web.
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| 14. | The evolutionary history of the Entelegynae is thus intimately connected with the evolutionary history of orb webs.
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| 15. | They make their sticky rounded orb webs near lights and between trees where insects are likely to fly.
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| 16. | The orb web is usually truncated by a top horizontal support strand, giving it an incomplete look.
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| 17. | Spiders of the genus " Cyclosa " build relatively small orb webs with a web decoration.
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| 18. | Many also held that cribellate and ecribellate spiders had separately evolved orb webs from other kinds of web.
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| 19. | Ms . Lin said in a telephone interview that spiders created orb webs by making two types of thread.
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| 20. | Weavers of orb webs use it as a way to detect the presence of insect prey in the web.
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