The man collected the seashell while snorkeling in Egypt's Red Sea, totally unaware that the shell was teeming with life.

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 ...

He's joining me today to teach me how to eat sea snails. Dan Q. Dao: It was, like, the whole experience. A trash can full of shells under you, you're drinking a ton of beer, and everything's ...

The sea snail with shell measures a little less than 2 centimeters. Although the sea creature is found in colonies at a beach only minutes from the school, it is designated as a near-threatened ...