Starting Aug. 12, the public can watch fossil preparation of the 91探花聽鈥荣听Tyrannosaurus rex聽skull 鈥渓ive.鈥� Over the next several months, Burke paleontologists will carefully remove the rock surrounding the skull, slowly exposing the 66-million-year-old specimen.聽聽in summer 2016 in the Hell Creek Formation in northeast Montana, the skull is 4 feet long, weighs 3,000 pounds in its field jacket, is the first in Washington and one of only 15 reasonably complete聽T. rex聽skulls ever discovered. Read more from the .