Fishy Conversations — Spiny lobsters are like men, their voices become deeper as they grow older. This is one of the preliminary findings of Dr. James M. Moulton of Bowdoin College, Brunswick, Me., who spent this summer at the Bermuda Biological Station eavesdropping on the conversations of undersea life. In countless other marine biological stations and research laboratories throughout the world, other researchers like Dr. Moulton are studying the various aspects of the oceans. The aim is twofold: They hope to unravel some of the mysteries of what many scientists feel is the “last frontier,” the oceans. They hope that their studies will one day provide mankind with limitless harvests that will feed an expanded population which the land will no longer be able to sustain.