Unlike humans and other mammals, which become less fertile with age, naked mole-rats can reproduce throughout their remarkably long lifespans. A new study sheds light on unique processes that bestow the rodents with what seems like eternal fertility, findings that could eventually point to new therapies for people.Unlike humans and other mammals, which become less fertile with age, naked mole-rats can reproduce throughout their remarkably long lifespans. A new study sheds light on unique processes that bestow the rodents with what seems like eternal fertility, findings that could eventually point to new therapies for people.