New Scientist, September 2010
For many years researchers in Western Australia’s Shark Bay have noticed Indo-Pacific bottlenose dolphins hefting and shaking heavy conch shells out of the water for several minutes. What were they up to?
https://www.newscientist.com/article/dn19421-meet-william-the-concherer-the-dolphin-that-can-fish/
https://www.newscientist.com/article/dn19421-meet-william-the-concherer-the-dolphin-that-can-fish/