#Hawkmoths

New research suggests male hawkmoths have three distinct anti-bat, ultrasound-producing systems. These may have evolved independently up to seven times between 5 million and 30 million years ago

The genital structures of male hawkmoths are lifesavers. By rubbing specialized scales on their genitals against parts of their abdomen, the nocturnal insects emit ultrasonic sounds that can potentially scramble the acoustic signals that bats use to hunt.