Zur Biologie und Evolution der Lebenserwartung von Tieren

Biodemography is an emerging field of biology. Zoological Gardens can provide a lot of exact data on mean longevity and maximum life-span. The age of certain animal species are connected with their habitat, their ecology, and the taxonomy. Examples for ages and life-cycles are given for many taxonomic units in this article. The relevance for keeping is discussed. In the focus of the visitor's attention many old animals become “animal personalities”. Such charismatic zoo-animals are often elephants, hippopotamuses, bears or great apes.