The big brown bat is the Adirondack’s largest bat; only the hoary bat is larger. The long, lustrous fur is brown. The ears, wing and tail membranes are black. Total length is 105-123 mm (4.1-4.8 in).

Bat colonies can reach truly enormous sizes, some with millions of bats pouring out to feed each night, and one cave in Texas has the largest of them all.

But as that ocean becomes ever deeper and vaster through accelerating sea-level ... Those bats are Florida bonneted bats. Florida's largest bats, these unique creatures get their common name from the ...