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