[Matt] Dig into your local pond, and you just might find one of the strangest, most mysterious organisms on Earth. Even here, smack in the middle of San Francisco, they're everywhere. What's that ...
It’s morning in early March, and Wallace Marshall---a towering, plaided-out cell biologist---is kneeling over a pond in San Francisco’s Golden Gate Park, digging through the muck. “What’s that smell?” ...
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