Digging up ancient worlds
When construction workers break into the earth’s surface, it’s not unusual for them to discover ancient worlds. Last year, crews unearthed the remains of three mammoths and one giant bison in San Francisco. While working at the Caldecott Tunnel, fossil hunters discovered the remains of camels that once roamed the East Bay. There are actually provisions in California’s environmental laws that require anyone doing major digging projects to call fossil experts first, just in case. So when work began near Fremont to rebuild the Calaveras Dam, paleontologist Jim Walker was called to the scene to hunt for fossils. He expected to find a few, but the count surpassed 600.