Scientists say that a series of marks carved onto a freshwater clam shell represent the earliest known engravings made by a human ancestor. The zigzag lines visible in the photo above probably were ...

Have you ever held a handful of scallop shells and wondered why they are colored differently? Or where the holes in a clam shell came from? And what is a mermaid's purse, exactly? Here's a fun guide ...

In a recent study published in Nature Communications, a team of researchers from the United Kingdom examine centuries-old quahog clam shells to explain the reasons behind a “tipping point” that the ...

A geoduck shell found scatted among other shells discarded by the Tseshaht peoples 500 to 1000 years ago suggests that the community had been harvesting and eating geoduck for centuries. Lorraine ...

Clams can once again be found at Pismo Beach, but not of a size that can be legally harvested. Cal Poly researchers are studying the population of the clams, which vary in shell color and pattern.