Researchers Record Oldest Little Brown Bat Ever

Brown bat
Wisconsin Department of Natural Resources staff read the bat’s number
Image Credit: Wisconsin DNR

Just because a brown bat is little doesn’t mean it’s not old. Wisconsin Department of Natural Resources researchers recently discovered a little brown bat (Myotis lucifugus) that was tagged 32 years ago — in April 1983. But the bat may be even older, since it isn’t easy to tell how old bats are after reaching adulthood. The Wisconsin DNR estimates that the bat has eaten nearly 14 million insects over the course of the 32 years since it was first banded by researchers.

Read more at the Wisconsin Department of Natural Resources