Rooted T. Rex Tooth — A Rare Glimpse into a Predator’s Life A rooted T. rex tooth is one of the most exciting finds a fossil hunter can hope for. Unlike broken or shed crowns, a tooth with its root still attached tells a much deeper story — one that goes beyond feeding and into the biology of the animal itself. Tyrannosaurus rex constantly shed and replaced its teeth throughout its life, much like modern sharks. Finding a tooth with the root preserved suggests it was lost naturally during replac