By observing roost selections of the very first passengers, bat choices can be established as well as satisfied by varying the shade or sun direct exposure for subsequent homes. The forefathers of the endangered Hawaiian Hoary Bat traversed 3,600 kilometers from the Pacific Coast almost 10,000 years ago to become Hawaii's state land creature. Picture 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 lifespan, but bats damage that regulation of long life.