03/21/2025

When Dwarf Lemurs Hibernate, Their Chromosomes Do Something Odd

A large eyed, adorable furry creature stands on a tree branch, with orange flowers growing on it.
A hamster-sized primate from Madagascar, the fat-tailed dwarf lemur is our closest genetic relative known to hibernate. They also tend to live longer than you’d expect given their size. New research reveals a potential anti-aging mechanism within their cells. Credit: Duke Lemur Center
A curled up furry tiny creature in a fuzzy looking blanket surrounding its body
A sleeping fat-tailed dwarf lemur. Credit: Duke Lemur Center

The fat-tail dwarf lemur is one of the only primates that hibernate for the winter. A new study published in the journal Biology Letters takes a closer look at what’s going on inside lemur cells when they are in this extended phase of suspended animation. It turns out that their telomeres, the ends of the chromosomes, actually grow longer when the dwarf lemurs hibernate. Typically telomeres shorten as we age, as cells continuously divide. So, what exactly does this finding mean for lemurs and other primates, like humans?

Host Flora Lichtman talks with the co-authors of this study, Dr. Marina Blanco and Dr. Lydia Greene, research scientists at Duke University.


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Segment Guests

Marina Blanco

Dr. Marina Blanco is a research scientist at Duke University in Durham, North Carolina.

Lydia Greene

Dr. Lydia Greene is a research scientist at Duke University in Durham, North Carolina.

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