Naked mole-rats: A case study in biological weirdness

Like bees, ants, and termites, naked mole-rats have a single breeding “queen” in each colony, and other “worker” individuals exist in castes that perform specific tasks. Around 1981 and the next decade, naked mole-rats – a perfect match for his predictions – were found to be eusocial. (This would also explain why only mole-rats in captivity have had tumors, since they’re kept at atmospheric oxygen levels.)

Source: eukaryotewritesblog.com