Human encroachment into or adjacent to natural areas where bush elephants occur has led to recent research into methods of safely driving groups of elephants away from humans , including the discovery that playback of the recorded sounds of angry honey bees are remarkably effective at prompting elephants to flee an area . Human encroachment into or adjacent to natural areas where bush elephants occur has led to recent research into methods of safely driving groups of elephants away from humans , including the discovery that playback of the recorded sounds of angry honey bees is remarkably effective at prompting elephants to flee an area .