A naked mole rats

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Pien Huang. Picture a pinkish, hairless, wrinkly rodent about the size of a small sweet potato. Researchers are studying naked mole rats to figure out what they can learn about longevity and health.

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The naked mole-rat Heterocephalus glaberalso known as the sand puppy[4] is a burrowing rodent native to parts of East Africa. It is closely related to the blesmols and is the only species in the genus Heterocephalus of the family Heterocephalidae. It has a highly unusual set of physical traits that allow it to thrive in a harsh underground environment and is the only mammalian thermoconformeralmost entirely ectothermic cold-blooded in how it regulates body temperature.

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Naked mole rats NMRs; Heterocephalus glaber are the longest-living rodents known, with a maximum lifespan of 30 years times longer than expected on the basis of body size. These highly social mouse-sized rodents, naturally found in subterranean burrows in the arid and semiarid regions of the horn of Africa, are commonly used in behavioral, neurological, and ecophysiological research. Their long lifespan is attributed to sustained good health and pronounced cancer resistance.

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All rights reserved. There are many different kinds of mole rats. The best known is probably the naked mole rat, whose hairless, tubular, wrinkled body makes it appear a bit like a tiny walrus—or perhaps a bratwurst with teeth. Naked mole rats are rodents, but they live in communities like those of many insects.

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Yes, these odd little creatures with pink, wrinkly skin dig and live in underground burrows the way moles do. Yes, they have skinny, rat-like tails. Why are they "naked"?

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This website uses cookies for user login, personalised content and statistics. By continuing to browse the site, you are agreeing to our use of cookies - if you wish to opt-out of non-essential cookies, you may do so below. Naked mole-rats that breed live longer than non-breeders of the species, defying the prevailing scientific view on reproduction and ageing.

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For years, researchers have overlooked the naked mole rat, an elusive rodent that lives underground. But now they believe they may help humans live longer, healthier lives. Follow scientists around the globe as they study these remarkable rodents in labs and in their natural habitat, tracking their mating habits, testing their blood, and decoding their genome in an ongoing quest to combat age-related illnesses and even aging itself.

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Just when it seemed the naked mole rat couldn't get any weirder, it turns out the buck-toothed, bare-skinned rodents don't even age. Unlike literally every other mammal, naked mole rats don't become more likely to die as they get up there in years. In humans, for example, with all else being equal besides age, a person's risk of dying doubles every 8 years after age

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Now researchers have found one biological motivation for this behaviour. Like bees, naked mole rats live in eusocial colonies, with only one queen rat and a few males that can reproduce. The rest of the colony consists of dozens of infertile subordinates that help with tasks such as foraging and defending the nest.

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John Smith, The Conversation. The naked mole-rat is perhaps one of the most bizarre beasts on the planet. At first glance, it looks like little more than a cocktail sausage with legs and teeth.


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