There are a few bats in the Werehpai Caves. It is likely that various species use the caves over time, both seasonally and daily/nightly, but the one bat that is almost certain to be there on any given day is the doglike bat (Peropteryx sp.). This bat is a small insectivore in the Emballonuridae family, more easily remembered as the sac-winged bats. Without grabbing one, the species can not be determined exactly, but this seems to be Peropteryx kappleri the greater doglike bat. They typically roost with the forearms splayed and the head cocked up, and while they won't let you get too close, they are not as easily disturbed as some bats, and with a pair of binoculars you can get a really nice look at them in the caves (yes, there is enough light for this unless really dark and cloudy outside).