Does this mean that any mammal lives longer? What does it mean by "no land mammal," then?
Graunt’s book is a glimpse of the suddenness and terror of death before modern medicine. It came early, too: until the 20th century, the average human lived about as long as a chimpanzee. Today science and economic growth mean that no land mammal lives longer. Yet an unintended consequence has been to turn dying into a medical experience.
How to have a better death, April 29 Issue, The Economist http://www.economist.com/news/leaders/21721371-death-inevitable-bad-death-not-how-have-better-death