In echolocation, bats send out short pulses that have a high frequency. The short pulses that the bats send out have such a high frequency that the average human cannot hear them. The waves that the bats send ripple out from them circularly and will bounce off of anything that is in the bat’s way, and will also go back to the bat in the form of an echo. By instinctively examining the echoes that they receive, the bats will be able to tell the direction that the object is coming or going from, how fast it is going that way and how far away it is from the bat. Some bats can even tell how big the object is that is in their way. If bats didn’t have the use of echolocation, they’d need some other way to stay alive, because echolocation is the bat’s way of life. It is the primary reason that it is able to live in its environment.