Bats hunt moths and other insects by using echolocation, where they emit ultrasonic calls and analyze the rebounding sound. So to avoid getting eaten by hungry bats, hawkmoths blast the flying mammals with their own ultrasound…which comes from their genitals. Seriously.
Click to viewIf we're not participating in a jet-powered water cannon arms race yet, we need to get going. Because once you watch China's $456,000 monster spew four tons of water per minute, you're going to want one of our own.