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On average, captive animals (especially mammals) live longer than wild animals. This may be due to the fact that with proper treatment, captivity can provide refuge against diseases, competition with others of the same species and predators. Most notably, animals with shorter lifespans and faster growth rates benefit more from zoos than animals ...
The 100 species with longest life-spans recorded and verified [1] This is a list of the longest-living biological organisms: the individual(s) (or in some instances, clones) of a species with the longest natural maximum life spans. For a given species, such a designation may include:
Rats, mice, and hamsters experience maximum life-span extension from a diet that contains all of the nutrients but only 40–60% of the calories that the animals consume when they can eat as much as they want. Mean life span is increased 65% and maximum life span is increased 50%, when caloric restriction is begun just before puberty. [57]
As one of the longest living known orcas, Granny is employed as an example in arguments against keeping orcas in captivity, referencing the allegedly reduced lifespan of captive animals. [17] As of 2025, the oldest captive orca is Corky, who has been in captivity since 1969. The average lifespan for a captive orca is 20 to 30 years.
He also stated that no captive orca has lived for 55.8 years, [91] the recorded average life expectancy of adult orcas at SeaWorld. [92] SeaWorld San Antonio's 14-year-old Taku, born in captivity, died suddenly on October 17, 2007. Trainers were notified that Taku had been acting differently a week before his death.
Life expectancy of the Amazon river dolphin in the wild is unknown, but in captivity, the longevity of healthy individuals has been recorded at between 10 and 30 years. However, a 1986 study of the average longevity of this species in captivity in the United States is only 33 months. [ 24 ]
In the lab their maximum life span is 96 months, and mean life expectancy is 45.5 months for females and 47.5 for males. [24] In many areas deer mice live less than 1 year. [ 16 ] One captive male deer mouse lived 32 months, [ 16 ] and there is a report of a forest deer mouse that lived 8 years in captivity (another mouse was fertile until ...
Life expectancy is also used in plant or animal ecology, [10] and in life tables (also known as actuarial tables). The concept of life expectancy may also be used in the context of manufactured objects, [ 11 ] though the related term [ dubious – discuss ] shelf life is commonly used for consumer products, and the terms "mean time to breakdown ...