Scientists have discovered a giant spider web spanning about half the size of a tennis court and with some 111,000 spiders in a cave on the border between Greece and Albania. In it are around 69,000 domestic house spiders (Tegenaria domestica), in addition to over 42,000 of Prinerigone vagans dwarf weavers (Linyphiidae), the study said. The researchers from universities and natural history museums in Albania, Romania, Belgium, Germany and Italy have called the discovery "the first documented cas