Colors Sported by Shorkies. Yorkshire terriers are typically tan and black, although blue is one variation that is accepted. Shih Tzus bring a whole rainbow of color to the party, though, with all colors from cream to red to black to white.
Age set. In anthropology, an age set is a social category or corporate social group, consisting of people of similar age, who have a common identity, maintain close ties over a prolonged period, and together pass through a series of age-related statuses. This is in contrast to an age grade, through which people pass individually over time.
Age structure > 65 years and over: The distribution of the population according to age. Information is included by sex and age group (0-14 years, 15-64 years, 65 years and over). The age structure of a population affects a nation's key socioeconomic issues.