Bats jamming sound of competitors

For the first time, a species of bat has been observed interfering with the sound signals of their competitors to stop them feeding.

In this video a Mexican free-tailed bat echolocates and captures an insect in the field. You can hear the echolocation calls speed up as the bat nears the prey, allowing the bat to rapidly update its "sonar screen" before capture.

The second part of the video shows the echolocation of a bat is "jammed" or scrambled, causing the bat to miss its prey in the field.

The video is 20 times slower than real life speed.