The tiny olm can live to be 100 years old. How do they do it? They’re lazy. These milky-white salamanders are extremely inactive, saving energy and only moving when it’s time to feed or breed. | cbcdocs
viewers meet species that exemplify all realms of age: longevity, reproductive health, social status and wisdom. From elephants to orcas, the animal kingdom has a good share of marathon agers.In the animal world, bigger animals often live longer. For small animals, life can move very quickly, and maintaining a high heart rate and metabolism wears out their bodies within a year or two , but some of the bigger mammals can stick around a lot longer.
And when it comes to aging, the wrinkly pink rodents are one of a kind. These small social mammals live in large underground colonies and can live much longer than you would expect. Most similarly sized rodents live for about 6 years but naked mole rats can survive beyond 30 years, even remaining fertile in old age.These mole rats also have another trick up their sleeve — they don’t age. As most mammals grow older, their risk of dying increases rapidly — but not mole rats.
But one of the longest-lived amphibians almost looks long in the tooth, even when young — blind, pale and slender, the ‘olm’ is a champion among aging amphibians. They are a strange species of salamander that evolved in the pitch-black caves of southern Europe, where the lack of light resulted in their reduced eyesight. In its dark, watery home, the olm takes nearly 16 years to reach maturity and even then, only reproduces every 12 years.
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