Many Sumatran Rhinos lived the full lifespan of the species in captivity, which is rather surprising to me. Although some died quickly, this could be natural aging, because it was a random capture of animals from dying out populations. Losses are not that higher than an average large ungulate captured in the 1980s. Especially that most other programs with of wild animals pre-select young and healthy animals for capture, which live longer. Stories from the 1980s made it seem like Sumatran Rhinos were dropping dead like flies.
Surprisingly, rarely and shortly a possible breeding pair was ever kept together, either in home range or abroad. As a potential pair I define the simplest: a breeding age male and female without any obvious handicaps, kept at the same time in one institution.
Many institutions kept for many years a breeding-age Sumatran Rhino without a potential partner, rather than sending it elsewhere to create a pair. It mirrors how breeding of elephants and giant pandas in zoos was sporadic for many years.
Surprisingly, rarely and shortly a possible breeding pair was ever kept together, either in home range or abroad. As a potential pair I define the simplest: a breeding age male and female without any obvious handicaps, kept at the same time in one institution.
Many institutions kept for many years a breeding-age Sumatran Rhino without a potential partner, rather than sending it elsewhere to create a pair. It mirrors how breeding of elephants and giant pandas in zoos was sporadic for many years.