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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:
This is a list of maximum recorded animal lifespans in captivity. Only animals from the classes of the Chordata phylum are included. [ 1 ] On average, captive animals (especially mammals ) live longer than wild animals.
The maximum life span of most species is documented in the AnAge repository (The Animal Ageing and Longevity Database). [ 22 ] Maximum life span is usually longer for species that are larger, at least among endotherms, [ 23 ] or have effective defenses against predation, such as bat or bird flight, [ 24 ] arboreality, [ 25 ] chemical defenses ...
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 ...
[2] [4] It has also been found that the greater a cat's weight, the lower its life expectancy on average. [4] The current oldest verified cat alive is Flossie, who was born in 1995 in the United Kingdom. [10] A common misconception in cat aging (and dog aging) is that a cat ages the equivalent of what a human would age in seven years each year ...
Now, this remarkable club of life-cycle-reversing organisms includes the comb jelly Mnemiopsis leidyi, adding a new chapter to what is understood about animal regeneration and development. Image ...
These squirrels can live to be 20 years old in captivity, but in the wild live much shorter lives due to predation and the challenges of their habitat. At birth, their life expectancy is 1–2 years, an adult typically can live to be six, with exceptional individuals making it to 12 years.
However, the species' life expectancy in the wild is only 1.8 to 3.1 years, depending on the local conditions such as traffic volume, hunting, and weather severity. [203] It is not unusual for only half of the young born in one year to survive a full year. [186] [204] After this point, the annual mortality rate drops to between 10% and 30%. [186]