Hiss off

2019-03-07 01:08:01

BUMBLEBEES repel creatures invading their nests with an ultrasonic hiss, biologists in Germany have found. Wolfgang Kirchner of the University of Konstanz and Jacqueline Röschard of the University of Würzburg showed that the insects produce a conspicuous hissing sound when disturbed, with harmonics of up to 60 kilohertz (Insectes Sociaux, vol 46,