(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Scientists have estimated that just one small stretch of beaches along the Gulf of ...

Seashells are so plentiful that you may sometimes take them for granted. Scientists have estimated that just one small stretch of beaches along the Gulf of California contained at least 2 trillion ...

Seashells tend to appear quietly. After the tide pulls back, they are just there, mixed into the sand, sometimes whole, sometimes worn thin. They do not look like remains at first. More like leftovers ...