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As of 2013, the maximum verified human life span stood at 122.5 years.
The life spans of some tortoises and lake trout are uncertain but are estimated to extend beyond 150 years.
The maximum life span of a domestic dog is about 20 years, and that of a laboratory mouse is 4.5 years; most mice in the wild do not live to celebrate even their first birthday.
If a fruit fly survives to eclose (in the wild, more than 90% die as larvae), it has a maximum life span of 3 months.
Species-specific life spans appear to be determined by genes that effect a trade-off between the energy used for early growth and reproduction (which results in somatic damage) versus the energy allocated for maintenance and repair.
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