The wind schusses through the grove of tall trees, rustling their soft, bright green needles that, strangely enough, are the color of inchworms. The morning sun spills down through the branches, casting the glade in a pale green light, a hue unlike anything the visitors have ever seen. These metasequoia trees -- all 360 of them -- are living fossils, the lonely representatives of a species that once filled the forests of the Americas, Europe and Asia when dinosaurs roamed the Earth more than 60 million to 100 million years ago. The stand of trees, located on a Rutgers University...