How We Use Ancient Stone-Cutting Techniques To Preserve Dinosaur Tracks

Unearthing the fossilized bones of dinosaurs without destroying them is already a pretty fiddly process, one that requires time, patience, and many, many delicate brushes. But when you're talking not about bones but the even more delicate tracks that dinosaurs left behind, the process gets that much trickier. » 10/24/14 4:20pm 10/24/14 4:20pm