from

• Lat : 51.4836023458356
• Lon : -0.0491541922611199
• Accuracy : 8.0

to

• Lat : 51.4837410608087
• Lon : -0.0491468790841585
• Accuracy : 8.0

extensions

• Course : 0.46879035234
• Speed : None

audio

• Duration : 00:00:16

That bats navigate through ultrasonic echolocation was finally proved in the 20th century, in a collaboration between biologist Donald Griffin and physisist G. W. Pierce.