Marine Research: The Shark Caller


In a small control room on the Bahamian island of North Bimini, Marine Biologist Arthur Myrberg pushed a button, then stared intently at a television monitor. Within half a minute, the TV screen came alive with thrashing sharks, groupers, snappers and other large inhabitants of the deep. Myrberg's surprising underwater show had once again started on cue—as it does whenever he signals his aquatic actors.

By pressing the button, the University of Miami scientist had set off a low-frequency sound projector submerged in 60 ft. of water on the ocean floor. To any carnivorous fish within earshot, the signals...

Want the full story?

Subscribe Now


Get TIME the way you want it

  • One Week Digital Pass — $4.99
  • Monthly Pay-As-You-Go DIGITAL ACCESS$2.99
  • One Year ALL ACCESSJust $30!   Best Deal!
    Print Magazine + Digital Edition + Subscriber-only Content on

Learn more about the benefits of being a TIME subscriber

If you are already a subscriber sign up — registration is free!