What is the life span of brown bats in north America?

Brown bats (Eptesicus fuscus) are one of the most common and widely distributed bat species in North America. Their lifespan varies depending on factors such as geographical location, climate, and availability of food and habitat. In general, brown bats have an average lifespan of around 6-10 years in the wild. However, some individuals have been known to live for up to 20 years in captivity or under optimal conditions.

It's important to note that brown bats, like other small mammal species, face numerous challenges and threats in the wild that can impact their lifespan, including predators, diseases, habitat loss, and climate change. These factors can affect their survival and influence the natural lifespan of brown bat populations.