Since their discovery 13 years ago, scientists have puzzled over the origin of tiny glass beads found inside ancient clam shells. New evidence suggests they’re microtektites—a byproduct of meteorite ...

Back in 2006, Mike Meyer was an undergraduate student at the University of South Florida looking for fossils in the shell-packed walls of a quarry near Sarasota, the cross-section of which offered a ...

The tiny, pale surf clam about the size of a fingernail that most people have seen and collected on beaches around the world holds clues in its shell to Earth's past. For the first time, researchers ...

SHENZHEN - Customs authorities in the southern metropolis of Shenzhen have intercepted more than 7,000 beads made of the shells of an endangered clam species. A suspect was caught in August with 7,319 ...