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.

Brilliant shades of blue and aqua coat the iridescent lips of giant clams, but these shiny cells aren't just for show, new research finds. The iridescent sheen directs beams of sunlight into the ...

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 ...