Middle school readers can journey into the prehistoric world of tyrannosaurs and discover what it was like to excavate the world's largest T. rex skeleton. "Scotty," the largest Tyrannosaurus rex skeleton in the world, was discovered by an elementary school teacher in Saskatchewan's Frenchman River Valley in 1991. It took twenty-three years to excavate the bones and prepare the skeleton for study. Now Scotty has found a new home in the...