By observing roost choices of the initial residents, bat choices can be determined and fulfilled by differing the shade or sunlight direct exposure for succeeding houses. The forefathers of the endangered Hawaiian Hoary Bat traveled over 3,600 kilometers from the Pacific Coast virtually 10,000 years ago to end up being Hawaii's state land animal. Image by Frank Bonaccorso, USGS.9. The longest-living bat is 41 years of ages. It's said that the smaller sized the pet, the much shorter its life expectancy, but bats break that regulation of durability.