Their lifespan is approximately the same as humans.
Their home planet, Fesoan, is planet VIII out of nine in the Epsilon Indi system. It is a large, hot dry world with little surface water, and a gravity of 0.9g. There are, however, vast underground reserves that feed surface geysers heated by geothermal energy. Oases surrounding these geysers are the centers of the planet's main population areas, since the great majority of Andor's plant life thrives where subsurface water is plentiful.
Andorians have always been a war-like race, and the martial spirit is still strong in their culture. They are extremely disciplined, and while their caste system has been overturned for many years, there is still a strong sense of social position and duty. They still revere family ties and ancestors to some extant, although alien religions have made something of a foothold.
Andorians are a hard-working and serious folk, who are often but incorrectly viewed as humorless and irritable. In fact, Andorians have a complex set of propositional ``grammars'' by which they express humor, and as such they do not tend to find human humor amusing, nor do non-Andorians tend to ``get'' their humor. As to the irritability, the harsh history of early Andorian civilization has left a strong taboo against the appearance of frivolity or wasted effort. Andorians are hard working and often feel uncomfortable when invited to pursue purely recreational activities or pastimes. Their curt refusals often make them seem prudish or unsociable, while in fact they simply don't have a strong cultural pragmatism for engaging in such activities. Andorians are also reluctant to enter into strong personal relationships, another left over trait from their troubled past. This lack of a social skill so common in almost all other Federation races simply reinforces the sense of isolation and distance that others perceive between an Andorian and themselves.
As a young Andorian reaches his age of majority, he can either choose to remain with his own cooperative or seek to join another cooperative and establish a family line there. Some Andorians spend their early years alone, wandering from one city cluster to another, unable to decide on a Cooperative venture. These ``wayfarers'' are unpopular within normal Andorian society and offten tend to be attracted to anti-social Cooperatives, roving bands of ruffians and malcontents who roam the countryside.
Andorian culture is divided into the ``Coastal'' and the ``Inland'' races. Those who live in coastal cities constitute about 60% of the total population, and have been the centers of technological development. The inland plains are home to semi-nomadic inland Cooperatives, who even today remain devoted to their ancient heritage. These cultural groups have minimal contact at this point, with increasing disdain on both sides.