Discovery of extinct bat doubles diversity of native Hawaiian land mammals

The Hawaiian Islands have long been thought to support just one endemic land mammal in the archipelago’s brief geologic history, the Hawaiian hoary bat. But new fossil evidence indicates that a second, very different species of bat lived alongside the hoary bat for thousands of years before going extinct shortly after humans arrived on the islands. The research describes the mysterious bat, whose remains were first discovered in a lava tube more than 30 years ago.
Paleontology News — ScienceDaily