We present life history data on wild Sumatran orangutans gleaned from a 32-year and a 5.5-
year study. Estimated age at first reproduction was 15.4 years. At 9.3 years, the average …

Around the world, human populations have experienced large increases in average lifespan
over the last 150 years, and while individuals are living longer, they are spending more …

Nonhuman primates have played critical roles in biomedical research, and they are among
the few animals whose use in research continues to increase. The scienti? c value of …

Nonhuman primate (NHP) aging research has traditionally relied mainly on the rhesus
macaque. But the long lifespan, low reproductive rate, and relatively large body size of …

Old mice will have a subset of lesions as part of the progressive decline in organ function
that defines aging. External and palpable lesions will be noted by the research, husbandry …

Today's apes are few in number and in kind. But between 22 million and 5.5 million years
ago, a time known as the Miocene epoch, apes ruled the primate world. Up to 100 ape …

The second edition of this text provides a comprehensive, up-to-date review of the use of
nonhuman primates in biomedical research. The publication emphasizes the biology and …

It has been suggested that highly social mammals, such as naked mole rats and humans,
are long-lived due to neoteny (the prolongation of youth). In both species, aging cannot …

All six great ape species are listed as endangered or critically endangered by the IUCN and
experiencing decreasing population trends. One of the threats to these non-human primates …

Among factors affecting animal health, environmental influences may directly or indirectly
impact host nutritional condition, fecundity, and their degree of parasitism. Our closest …