Attack and defense: interactions between echolocating bats
and their insect prey.
A diverse group of insects, including beetles, katydids, lacewings, and a host of moth species, have body structures that vibrate when struck by the ultrasonic frequencies used by echolocating bats
, says M.
According to the researchers, echolocating bats
minimize sound wave interference by tweaking the frequencies of the sounds they emit - their broadcasts - to detect and maneuver around obstacles.
The skeleton lacks all three bony features of the ear and throat that all of today's echolocating bats
are surprisingly energy efficient in flight, report two zoologists, who believe their finding supports a controversial theory that some bats evolved from primates.