How do you soothe an angry shark? You can rock him to near-submission with heavy metal. That's what one Australian charter boat operator has discovered after witnessing sharks blissfully rubbing their snouts against caged underwater speakers belting out the sounds. "I guess the visual people expect is that of a shark with long hair kind of headbanging past the cage doing the air guitar," Matt Waller told Australian Geographic. "But, of course, sharks don't actually have ears, and it's the frequency and vibration they're after."
Waller experimented with different music to see what might attract sharks so tourists on his boat can get a close-up look at the creatures. He found heavy metal worked better than chum. So far, Waller has tested "Back in Black" and "You Shook Me All Night Long" by AC/DC. Next on his underwater playlist will be tunes by Led Zeppelin, the White Stripes, and Ozzy Osbourne. NPR music maestro Lars Gotrich has five other specific suggestions for tunes for all you angry Jaws out there. Check them out here. (Read more Matt Waller stories.)