Most people think of clams as a gooey blob inside of a two-piece shell, but there’s actually a lot more going on inside that shell that you might come to expect. While it’s true that a clam is rather ...

It’s my second day at the Tucson Gem Show and I’m standing in front of the Expo Center, examining the fossilized shell of the world’s largest giant killer clam. It’s gray-white and smooth, with a lip ...

There are a lot of different reasons why a clam might open its shell. My friend Jonathan Robinson, a marine ecologist at Washington State University, told me all about it. If we spent some time where ...

The growth layers in a 70-million-year-old clam shell indicate that a year back then had more than 370 days, with each day being only about 23.5 hours. Open up a clam, and you might see the making of ...

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 ...

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 ...