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My Living World LW006 Interplay Spider World, Mixed

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The fossil record of spiders is not very extensive. However, amber fossils of spiders, which are complete spiders trapped in tree resin, show us that a spider population similar to today’s existed 30 million years ago. Additionally, segmented spiders have survived in East Asia since the late Palaeozoic period until now. They live in caves and burrows and build trapdoors over them. They have not changed much from their ancestors. Habitat Avilés, L.; Maddison, W.P.; Agnarsson, I. (2006). "A New Independently Derived Social Spider with Explosive Colony Proliferation and a Female Size Dimorphism". Biotropica. 38 (6): 743–53. doi: 10.1111/j.1744-7429.2006.00202.x. S2CID 54023263. Ancestors of spiders existed up to 400 million years ago. However, the oldest true spiders were believed to have first appeared about 300 million years ago. By the Jurassic era, spiders with sophisticated webs like Mongolarachne jurassica began appearing.

As a result many humans are afraid of Spiders. They tend to do all they can to get them out of their homes and habitats. With humans continually invading the territory of the Spider they are having a hard time finding places where they won’t run into humans.In nature, spiders come in a variety of sizes, shapes and are found on every continent across the world expect for Antarctica. They all have eight legs, fangs and can produce silk, though not all make webs. Almost all species are carnivorous predators, however a few jumping spiders also feed on dead insects and even some plants. Foelix, Rainer F. (2011). Biology of Spiders (2nded.). New York: Oxford University Press. pp. 4–5. ISBN 978-0-19-973482-5. De Laguna, Frederica (2002). American Anthropology: Papers from the American Anthropologist. University of Nebraska Press. p.455. ISBN 978-0-8032-8280-3. Main article: Spider web Crab spider with prey The Phonognatha graeffei or leaf-curling spider's web serves both as a trap and as a way of making its home in a leaf. Menassa, R.; Zhu, H.; Karatzas, C.N.; Lazaris, A.; Richman, A.; Brandle, J. (2004). "Spider dragline silk proteins in transgenic tobacco leaves: accumulation and field production". Plant Biotechnology Journal. 2 (5): 431–38. doi: 10.1111/j.1467-7652.2004.00087.x. PMID 17168889.

Found in Central and Eastern Africa, the king baboon spider is truly a king. With a leg span of over 19cm, they are the biggest spider in all of Africa. Foelix, Rainer F. (1996). Biology of Spiders. Oxford University Press. pp. 232–33. ISBN 978-0-674-07431-6. This huge spider, with a leg span over 20cm is found in humid forests in Haiti and the Dominican Republic. They are mainly dark blue in colour but can also be found in a variety of shades, making them difficult to identify.Spiders reproduce in a variety of ways, depending on the species. Most spiders lay eggs and store them in silken egg sacs that are either attached to their webs or carried by the female until they hatch. Female spiders can also produce live young without fertilization, though this is more common in some species than others.

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