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
Paradise garden traditions and later European traditions derive from that of the paradise garden. Examples of the paradise garden and its derivations are present in many of the historic gardens of Islamic and European nations. In the east, by way of the Persian garden it gave rise to the Mughal gardens of India, a late example of which is the garden of the Taj Mahal in Agra. In the farthest west, it informed the paved and tiled courtyards, arcades, and pools and fountains of Moorish Andalusia. The fundamental design of the Gardens of Versailles in France almost replicates the paradise gardens of