Ventral view of a lesser dog-faced fruit bat (Cynopterus brachyotis) flying inside a wind tunnel. The markers on the body and wings are used to track their mevement during flight.

Two lesser dog-faced fruit bats (Cynopterus brachyotis) flying inside a wind tunnel during a training session.

A colony of Palla's long-tongued bats (Glossophaga soricina) flying around a feeder.

A lesser dog-faced fruit bat (C. brachyotis) flying inside a wind tunnel. A thin stream of smoke is produced to roughly visualize the wake left behind by the bat's wing.