Starting when he was a Ph.D. student in the 1990s, he has monitored the evolution of two common species of sea ... the snails through "risk cues" like smell and hormones—grew thicker shells ...

But conch snails defy these expectations with eyesight as good as some vertebrates. These marine snails combine exceptional vision, protective shells, and acrobatic leaping to evade deadly predators.

South Sea pearl-shells are common ... Haliotis iris, and a large species of Turbo, which shells are known in commerce as flat-shells, green snail-shells, buffalo-shells, Bombay shells.

A snorkeler in Egypt’s Red Sea had a near escape ... saw a picture of a similar shell online and was shocked to discover that he had held in his hands a cone snail, one of the world’s most ...

Scientists watched as a population of sea ... snails, known asLittorina saxatilis, living along the rocky shores of the ...