The Arach city of six trees is, as the name implies, built around six huge Bandun trees. A Bandun tree grows to almos a kelometer high on Gossamer, and is covered in sharp needles all over from the base of the trunk to the very tips of the branches. The needles serve as a form of defence against mammalian and avian parasites (no invertebrates, remember?) and also act as leaves, collecting sunlight and photosynthesising oxygen. Where the Arach come in contact with these trees, they usually coat them in a thick pad of webbing.<br/><br/>The city itself is five kilometers across and four levels deep, with the palace at the centre. The higher ranks live nerer the centre of their level, with each level being home to one caste. Only the nurse caste do not have an entire level, but instead occupy the nursery, which is on the ground, directly beneath the palace, fenced off with from the outside world with metre thick walls and floors of web.<br/><br/>The city is home around half a million Arach.<br/><br/>((If anyone wants a map, post in ooc thread))