More than 2,000 volunteers are helping Polish scientists restore a Mastodonsaurus skeleton. This massive amphibian was an aquatic predator from around the dawn of the dinosaur age. WARSAW, Poland (AP) — Volunteers armed with chisels, brushes and protective goggles chip away at rock encasing the bones of a massive prehistoric amphibian in a glass-walled laboratory on the ground floor of Warsaw’s Copernicus Science Centre. On the... [3908 chars]
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