A few bones have been collected, and the hope is that most of the animal remains to be unearthed. If so, it will be excavated and studied to see if it truly represents Tyrannosaurus rex or perhaps some other species of Tyrannosaurus . Discovering dinosaur fossils is much easier in badlands where rocks are exposed than in grassy fields. Bones can range in color from white to black, with everything in between. And bone is like wood-it has a grain to it.
Rocks have a different kind of grain or cross section.
You have to be able to separate the rocks from the bones, and sometimes it takes a while to see the difference. But once you know what color and shape to look for, then you can really start to pick things out. Along with shovels, picks, and brushes, high-tech tools are now used. When a bone is discovered, it's not just picked up off the ground. It's usually fragile and could break into pieces, so it first needs to be stabilized.