Submitted by examrobotsa on Thu, 01/01/1970 - 05:30 Bats can ascertain distances, directions, nature and size of the obstacles at night. This is possible by reflection of the emitted :ultrasonic waves from the bat. ultrasonic waves from the distant objects.supersonic waves from the bat.supersonic waves from the distant objects.stats: 0,264,112,264,72,40,0