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 ...
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.
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