Age structure can be represented graphically with a population pyramid (Figure 3). Although a population's age structure is not always pyramidal in shape, most populations have younger cohorts ...

A population pyramid shows the overall demographic structure of a country's population.

In 2015 demographers, teachers and politicians will stop talking about the population pyramid and start referring to the population dome. The change in terminology will reflect a profound shift in ...

The pyramid was characteristic of human populations since the day organised societies emerged. With lifespans short and mortality rates high, children were always the most numerous group, and old ...