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
Garden dormouse Garden dormouse The garden dormouse ("Eliomys quercinus") is a rodent in the dormouse family. Garden dormice are typically in length, with the tail adding . They weigh . The coat is gray or brown, with a white underside. The garden dormouse can be recognized by black eye markings, relatively large ears, short hair, and a white tassel at the end of the tail. In spite of its name, the garden dormouse's main habitat is the forest, though it can also be found in fruit-growing regions. It is particularly common in southern Europe, but its range extends into the north. Garden