Spider are apparently absent. In some species, the exocuticle of the legs and prosoma is modified by a tanning process, resulting in brown coloration. Bilins are found, for example, in "Micrommata virescens", resulting in its green color. Guanine is responsible for the white markings of the European garden spider "Araneus diadematus". It is in many species accumulated in specialized cells called guanocytes. In genera such as "Tetragnatha", "Leucauge", "Argyrodes" or "Theridiosoma", guanine creates their silvery appearance. While guanine is originally an end-product of protein metabolism, its excretion can be blocked in spiders, leading to an increase in its storage. Structural colors
Dutch Game Garden of Dutch video games. It has not only become an annual event in the Netherlands, but showcases Dutch video games at international events as well. In 2011, the Dutch Game Garden received a 4 million euro subsidy from the government and the European Union to realize its mission for another 5 years. In 2013 and 2014 the Dutch Game Garden has opened additional business center locations in Amsterdam and Hilversum (May, 19th). On March 3rd 2015 Dutch Game Garden has opened additional a business center location in Breda. Dutch Game Garden Dutch Game Garden is an organization with the aim