The article states: “It sounds dramatic to say that they don’t age at all, but basically their likelihood of dying does not change with age once they’re past r

The article states: “It sounds dramatic to say that they don’t age at all, but basically their likelihood of dying does not change with age once they’re past reproduction,” says Reinke." In humans, kids are born well below the age when we see the worst effects of aging. The old do not play much of a role in natural selection. It seems likely that aging or lack of it is more of an accident, then.