Long-lived bats are extreme outliers in the normal mammalian relationships between species body size, metabolic rate, and life span. They are small, have a high metabolic rate, and unlike near all other mammals with those characteristics, many bat species are long-lived. But bat species do exhibit a very wide range of life spans; near neighbor...

Scientists are studying the mechanisms behind bats' immune systems to uncover what they could teach about human longevity.

Long-lived bats are extreme outliers in the normal mammalian relationships between species body size, metabolic rate, and life span. They are small, have a high metabolic rate,…