Recording bat activity along the Colorado River in Grand Canyon

Acoustic data recording can be used to identify bats to species and to quantify bat activity. Here, river runners gather around a tablet and microphone to view live translations of the ultrasonic sounds that bats use to navigate the world. Software translates recordings into visuals and sounds that are audible to human ears. In the background, a light trap samples aquatic insects; critical prey for bats along the Colorado River in Grand Canyon.