Bats have an ambulance in their ears

Anybody who has been passed by an ambulance at high speed has experienced a physical effect called the Doppler shift: As the ambulance moves toward the listener, its motion compresses the siren's sound waves and raises the ...

Long-lived bats could hold secrets to mammal longevity

University of Maryland researchers analyzed an evolutionary tree reconstructed from the DNA of a majority of known bat species and found four bat lineages that exhibit extreme longevity. They also identified, for the first ...

Robotic sonar system inspired by bats

Rolf Mueller, an associate professor of mechanical engineering in the College of Engineering at Virginia Tech, has developed a prototype of a dynamic sonar system inspired by horseshoe bats.

Large moths need to hear better

Bats orient themselves through echolocation, and they find their prey by emitting calls and then process the echoes reflected back to them from the prey. Small insects reflect small echo signals, and large insects reflect ...