the whole "things live longer in the wild" is really species and system dependent. For example, gigantea anemones can get to several hundred years of age in the wild but rarely last more than 5 years in captivity for whatever reason you may have. However, some smaller fish species might outlive their wild couterparts because they don't have any predation in a captive system; old fish are slow and sick fish (easy targets). That said, let's not mislead ourselves and decide that every death we see is due to old age. The unavoidable truth is that the vast majority of the organisms we box up will live longer in the wild.
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