12. Naked Mole Rats
Naked mole rats (*Heterocephalus glaber*) are remarkable rodents known for their exceptional longevity, with lifespans exceeding 30 years, significantly longer than other rodents of similar size. (sciencedaily.com) They exhibit negligible senescence, maintaining reproductive and bodily functions throughout their lives. (pubmed.ncbi.nlm.nih.gov) Their resistance to cancer is attributed to high-molecular-mass hyaluronan (HMM-HA), a substance over five times larger than that in humans, which accumulates in their tissues and inhibits tumor growth. (pubmed.ncbi.nlm.nih.gov) Additionally, unique DNA repair mechanisms, including alterations in the cGAS protein, enhance their ability to repair DNA damage, contributing to their longevity and health. (phys.org)