Fish and chips? Fish filmed using rock as tool
Thursday, July 21, 2011 - 12:30
in Earth & Climate
When marine biologist Scott Gardner was swimming back to his boat after a dive on the Great Barrier Reef, he heard a strange cracking sound and grabbed his camera — just in time to snap some photos of a green wrasse (also known as a tuskfish) smacking a small cockle against a rock to get at the meat inside.