How bats 'hear' objects in their path
Monday, November 28, 2011 - 22:30
in Astronomy & Space
By placing real and virtual objects in the flight paths of bats, scientists have shed new light on how echolocation works. The researchers found that it is not the intensity of the echoes that tells the bats the size of an object but the 'sonar aperture', that is the spread of angles from which echoes impinge on their ears.