An Astounding Countdown of the 18 Creatures Blessed with the Longest Lives on Earth

The Brandt's Bat

The Brandt's Bat, a small mammal found in Europe and Asia, takes the 6th spot. Despite its small size, this bat can live for over 40 years, making it one of the longest-lived mammals for its size. The Brandt's Bat's longevity is believed to be due to its ability to lower its metabolic rate and enter a state of torpor.