CORE 2 FIRST TIMERS SO: DD-3 (E-H)

In bats’ FM sonar, the blast contains only one frequency (pitch) of ultrasound wave. This is often used when the bats are looking over a large open area for insects

To remember that FM frequencies are used for the capture of bugs and the close situations, use the memory trick that F can stand for Fast. When the bat needs to make Fast moves, it uses FM waves.

The big brown bat has a fat cochlea.

The fat-ness of the bat cochlea helps the Big Brown Bat to detect its own high-frequency sonar from many other bat’s sonar sounds.

The FM blast of sound consists of a single sound.

FM sonar works perfectly for bats hunting in crowded situations like when thousands of bats encounter a swarm of insects and begin quickly flying close to each another.