moths

  Genitals are useful for transferring sperm, but why stop there? Some animals have evolved unusual and creative ways to use their naughty bits to trick predators or attract mates. Recently, scientists discovered that hawkmoths have an unusual defense against bat sonar—by rubbing their genitals together, the moths produce ultrasonic sounds of their own. These...

In the air wars between bats and moths, the bugs are fighting back—by shaking their privates. It’s no award-winning dance move, but a new study shows that hawkmoths in Borneo (map) jiggle their junk to produce ultrasound. That jams Malaysian bats’ built-in sonar, rendering the hawkmoths temporarily “invisible.” Found worldwide, hawkmoths get their name from their large...